List of North American Numbering Plan area codes


The North American Numbering Plan divides the territories of its members into geographic numbering plan areas. Each NPA is identified by one or more numbering plan area codes, consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area may have multiple area codes assigned, a configuration termed an area code overlay. Area codes are also assigned for non-geographic purposes. The syntax rules for area codes do not permit the digits 0 and 1 in the leading position. Area codes with two identical trailing digits are easily recognizable codes. NPA codes with 9 in the second position are reserved for future format expansion.

Area codes in numerical order

Area codes that are not in use are listed in italic type face; and unassignable codes are bolded. The column Date lists either the date or year of assignment before implementation, or the in-service date.

200–299

CodeNumbering plan area or useDateNotes
200Not in use; available for non-geographic assignment
201North-east New Jersey
  • created for all of New Jersey
  • 1956: split to create 609
  • 1990: split to create 908
  • 1997: split to create 973
  • 2001: overlaid by 551
    • 202Washington, D.C.
  • 2021: overlaid by 771
    • 203South-west Connecticut
  • created for all of Connecticut
  • 1995: split to create 860
  • 2009: overlaid by 475
    • 204Manitoba
  • 2012: overlaid by 431
  • 2022: overlaid by 584
    • 205Western and central Alabama
  • created for all of Alabama
  • 1995: split to create 334
  • 1998: split to create 256
  • 2019: overlaid by 659
    • 206Washington
  • created for all of Washington
  • 1957: split to create 509
  • 1995: split to create 360
  • 1997: split to create 425 and 253
    • 207Maine
    208Idaho
  • 2017: overlaid by 986
    • 209Part of central California
  • split of 916
  • 1998: split to create 559
  • 2022: overlaid by 350
    • 210Texas
  • split of 512
  • 1997: split three ways to create 830 and 956
  • 2017: overlaid by 726
    • 211Not assignable; N11 code for community services, local/regional information service
    212Borough of Manhattan in York City">York, Pennsylvania">York City
  • created for all of New York City
  • 1984: split to create 718 for Brooklyn, Queens, and Staten Island
  • 1992: the Bronx switched to 718
  • 1992: overlaid by 917
  • 1999: overlaid by 646
  • 2017: overlaid by 332
    • 213California
  • created for the southern third of California
  • 1951: split to create 714
  • 1957: split to create 805
  • 1984: split to create 818
  • 1991: split to create 310
  • 1998: split to create 323
  • 2017: merged with 323 as an overlay
  • 2024: overlaid by 738
    • 214Texas
  • 1953: split to create 817
  • 1990: split to create 903
  • 1996: split to create 972
  • 1999: merged with 972 and overlaid with 469
  • 2021: overlaid by 945
    • 215Pennsylvania
  • 1994: split to create 610
  • 1997: overlaid by 267
  • 2018: overlaid by 445
    • 216Ohio
  • 1996: split to create 330
  • 1997: split to create 440
    • 217Central Illinois
  • 1957: split to create a part of 309
  • 2021: overlaid by 447
    • 218Northern Minnesota
  • 1954: split to create 507
    • 219Indiana
  • split of 317
  • 2002: split to create 260 and 574
    • 220Central Ohio outside of Franklin County
  • overlaid on area code 740
    • 221Not in use; available for geographic assignment
    222Not in use; available for non-geographic assignment
  • easily recognizable code
    • 223South-central Pennsylvania
  • overlaid on 717
  • mnemonic: ABE
    • 224Illinois
  • overlaid on 847
    • 225East-central Louisiana
  • created by split of 504
    • 226Southwestern Ontario
  • overlaid on 519
  • 2016: overlaid by 548
  • 2023: overlaid by 382
  • 487 reserved as a fifth area code for the region.
    • 227Western Maryland
  • Overlaid on 240/301
    • 228Mississippi
  • split of 601
    • 229Southwestern Georgia
  • split of 912
    • 230Not in use; available for geographic assignment
    231Northwestern Michigan
  • split of 616
    • 232Not in use; available for geographic assignment
    233Not in use; available for non-geographic assignment
  • easily recognizable code
    • 234Northeastern Ohio
  • overlaid on 330
    • 235Eastern Missouri
  • overlaid on 573
    • 236British Columbia
  • overlaid on 604, 250, and 778
  • 2019: overlaid by 672
  • 2025: overlaid by 257
    • 237Not in use; available for geographic assignment
    238Not in use; available for geographic assignment
    239Southwest Florida
  • split of 941
    • 240Western Maryland
  • overlaid on 301
  • 2023: overlaid by 227
    • 241Not in use; available for geographic assignment
    242The Bahamas
  • split of 809
  • mnemonic: BHA
    • 243Not in use; available for geographic assignment
    244Not in use; available for non-geographic assignment
  • easily recognizable code
    • 245Not in use; available for geographic assignment
    246Barbados
  • split of 809
  • mnemonic: BIM
    • 247Not in use; available for geographic assignment
    248Michigan
  • split of 810
  • 2002: overlaid by 947
    • 249Ontario
  • overlaid on 705
  • 2022: overlaid by 683
  • 460 reserved for overlay
    • 250British Columbia
  • split of 604
  • 2008: overlaid by 778
  • 2013: overlaid by 236
  • 2019: overlaid by 672
    • 251Alabama
  • split of 334
    • 252North Carolina
  • split of 919
    • 253Washington
  • split of 206
    • 254Texas
  • split of 817
    • 255Not in use; available for non-geographic assignment
  • easily recognizable code
    • 256Alabama
  • split of 205
  • 2010: overlaid by 938
    • 257British Columbia
  • overlaid on 236/672/778, 604, 250
    • 258Not in use; available for geographic assignment
    259Not in use; available for geographic assignment
    260Indiana
  • split of 219
    • 261Not in use; available for geographic assignment
    262Wisconsin
  • split of 414
    • 263Quebec
  • overlaid on 514 and 438
    • 264Anguilla
  • split of 809
  • mnemonic: ANG
    • 265Not in use; available for geographic assignment
    266Not in use; available for non-geographic assignment
  • easily recognizable code
    • 267Pennsylvania
  • overlaid on 215
    • 268Antigua and Barbuda
  • split of 809
  • mnemonic: ANT
    • 269Michigan
  • split of 616
    • 270Kentucky
  • split of 502
  • 2014: overlaid by 364
    • 271Not in use; available for geographic assignment
    272Pennsylvania
  • overlaid on 570
    • 273Quebec, Maine
  • reserved for relief of 367/418/581
    • 274Wisconsin
  • overlaid on 920
    • 275Not in use; available for geographic assignment
    276Virginia
  • split of 540
    • 277Not in use; available for non-geographic assignment
  • easily recognizable code
    • 278Not in use, but reserved for future geographic assignment
  • is reserved for relief of 734, but relief was canceled
    • 279California
  • overlaid on 916
    • 280Not in use; available for geographic assignment
    281Texas
  • split of 713
  • 1999: merged with 713 as an overlay
  • 1999: overlaid by 832
  • 2014: overlaid by 346
  • 2025: overlaid by 621
    • 282Not in use; available for geographic assignment
    283Ohio
  • overlaid on 513
    • 284British Virgin Islands
  • split of 809
  • mnemonic: BVI
    • 285–287Not in use; available for geographic assignment
    288Not in use; available for non-geographic assignment
  • easily recognizable code
    • 289Ontario
  • overlaid on 905
  • 2013: overlaid by 365
  • 2021: overlaid by 742
  • 537 reserved as a fifth area code for the region.
    • 290–299Not in use; reserved for potential North American Numbering Plan expansion

    300–399

    CodeNumbering plan area or useDateNotes
    300Not in use; available for non-geographic assignment
    • easily recognizable code
    301Maryland
  • created for all of Maryland
  • 1991: split to create 410
  • 1997: overlaid by 240
  • 2023: overlaid by 227
    • 302Delaware
    303Colorado
  • created for all of Colorado
  • 1988: split to create 719
  • 1995: split to create 970
  • 1998: overlaid by 720
  • 2022: overlaid by 983
    • 304West Virginia
  • 2009: overlaid by 681
    • 305Florida
  • created for all of Florida
  • 1953: split to create 813
  • 1965: split to create 904
  • 1988: split to create 407
  • 1995: split to create 954
  • 1998: partially overlaid by 786, in Miami-Dade County only
  • 2008: completely overlaid by 786, including the Florida Keys
  • 2023: overlaid with 645
    • 306Saskatchewan
  • 2012: overlaid by 639
  • 2021: overlaid by 474
    • 307Wyoming
    308Nebraska
  • split of 402
    • 309Illinois
  • created from parts of 217 and 815
  • 2023: overlaid by 861
    • 310California
  • split of 213
  • 1997: split to create 562
  • 2006: overlaid by 424
    • 311Not assignable; N11 code for non-emergency calls to local government, or to reach the city or county hall
    312Illinois
  • 1989: split to create 708
  • 1996: split to create 773
  • 2009: overlaid by 872
    • 313Michigan
  • 1993: split to create 810
  • 1997: split to create 734
  • 2025: overlaid by 679
    • 314Missouri
  • 1950: split to create a part of 417
  • 1996: split to create 573
  • 1999: split to create 636
  • 2022: overlaid by 557
    • 315New York
  • 1954: split to create a part of 607
  • 2017: overlaid by 680
    • 316Kansas
  • 2001: split to create 620
    • 317Indiana
  • 1948: split to create 219
  • 1997: split to create 765
  • 2016: overlaid by 463
    • 318Louisiana
  • originally used temporarily for the San Francisco Bay Area until 1953.
  • split of 504
  • 1999: split to create 337
  • 2025: overlaid with 457
    • 319Iowa
  • 2001: split to create 563
    • 320Minnesota
  • split of 612
    • 321Florida
  • In 1999, created by a simultaneous split and overlay of the 407 area code.
    • 322not in use; available for non-geographic assignment
  • easily recognizable code
    • 323California
  • split of 213
  • 2017: merged with 213 as an overlay
  • 2024: overlaid with 738
    • 324Florida
  • overlaid with 904
    • 325Texas
  • split of 915
    • 326Ohio
  • overlaid on 937
    • 327Arkansas
  • overlaid on 870
  • 2027: 870 & 327 will soon cover the entire state with boundary elimination details are TBD
    • 328not in use; available for geographic assignment
    329New York
  • overlaid on 845
    • 330Ohio
  • split of 216
  • 2000: overlaid by 234
    • 331Illinois
  • overlaid on 630
    • 332New York
  • created as an overlay of 212, 646, and a part of 917
    • 333not in use; available for non-geographic assignment
  • easily recognizable code
    • 334Alabama
  • split of 205
  • 2001: split to create 251
  • 2026: to be overlaid by 483
    • 335not in use; available for geographic assignment
    336North Carolina
  • split of 910
  • 2016: overlaid by 743
    • 337Louisiana
  • split of 318
    • 338not in use; available for geographic assignment
    339East Central Massachusetts
  • overlaid on 781
    • 340U.S. Virgin Islands
  • split of 809
    • 341California
  • overlaid on 510
    • 342not in use; available for geographic assignment
    343Ontario
  • overlaid on 613
  • 2022: overlaid by 753
  • 871 reserved as a fourth area code for the region.
    • 344not in use; available for non-geographic assignment
  • easily recognizable code
    • 345the Cayman Islands
  • split of 809
    • 346Texas
  • overlaid on 713, 281, and 832
  • 2025: overlaid by 621
    • 347New York
  • overlaid on 718 and a part of 917
  • 2011: overlaid by 929
  • 2026: to be overlaid by 465
    • 348–349not in use; available for geographic assignment
    350California
  • overlaid on 209
    • 351Massachusetts
  • overlaid on 978
    • 352Florida
  • split of 904
  • mnemonic: FLA
    • 353Wisconsin
  • overlaid on 608
    • 354Quebec
  • overlaid on 450/579
    • 355not in use; available for non-geographic assignment
  • easily recognizable code
    • 356not in use; available for geographic assignment
  • was authorized as a relief area code in New Jersey, but 862 was used
    • 357California
  • overlaid on 559
    • 358-359not in use; available for geographic assignment
    360Washington
  • split of 206
  • 2017: overlaid by 564
    • 361Texas
  • split of 512
    • 362not in use; available for geographic assignment
    363New York
  • overlaid on 516
    • 364Kentucky
  • overlaid on 270
    • 365Ontario
  • overlaid on 905 and 289
  • overlaid by 742 in 2021
  • 537 reserved as a fifth area code for the region.
    • 366not in use; available for non-geographic assignment
  • easily recognizable code
    • 367Quebec, Maine
  • overlaid on 418/581
  • 273 reserved as a fourth area code for the region.
    • 368Alberta
  • overlaid on 403, 780, and 587/825
  • 568 reserved as a fifth area code for the region.
    • 369California
  • overlaid on 707
    • 370–379not in use; reserved in case a block of consecutive numbers is ever needed377 is an easily recognizable code
    380Ohio
  • overlaid on 614 in Ohio
    • 381not in use; available for geographic assignment
    382Ontario
  • overlaid on 519/226/548
  • 487 reserved as a fifth area code for the region.
    • 383–384not in use; available for geographic assignment
    385Utah
  • overlaid on 801
    • 386Florida
  • split of 904
  • mnemonic: FUN
    • 387not in use; reserved to overlay 416/647/437
    388not in use; available for non-geographic assignment
  • easily recognizable code
    • 389not in use; available for geographic assignment
    390–399not in use; reserved for potential North American Numbering Plan expansion

    400–499

    CodeNumbering plan area or useDateNotes
    400not in use; available for non-geographic assignment
    • easily recognizable code
    401Rhode Island
    402Nebraska
  • created for all of Nebraska
  • 1954: split to create 308
  • 2011: overlaid by 531
    • 403Alberta
  • originally also covered all of the Yukon Territory and a part of the Northwest Territories
  • 1997: split to create a part of 867
  • 1999: split to create 780
  • 2008: overlaid by 587
  • 2016: overlaid by 825
  • 2022: overlaid by 368
  • 568 reserved as a fifth area code for the region.
    • 404Georgia
  • created for all of Georgia
  • 1954: split to create area code 912
  • 1992: split to create area code 706
  • 1995: split to create area code 770
  • 1998: overlaid by 678
    • 405Oklahoma
  • created for all of Oklahoma
  • 1953: split to create 918
  • 1997: split to create 580
  • 2021: overlaid by 572
    • 406Montana
    407Florida
  • split of 305
  • 1996: split to create 561
  • 1999: split and overlaid, partially, by 321
  • 2019: overlaid by 689
    • 408California
  • split of 415
  • 1998: split to create 831
  • 2012: overlaid by 669
    • 409Texas
  • split of 713
  • 2000: split to create 936 and 979
    • 410Maryland
  • split of 301
  • 1997: overlaid by 443
  • 2012: overlaid by 667
    • 411Not assignable; N11 code for local information, local directory assistance
    412Pennsylvania
  • 1998: split to create 724
  • 2001: overlaid by 878
    • 413Western Massachusetts
    414Wisconsin
  • 1955: split to create a part of 608
  • 1997: split to create 920
  • 1999: split to create 262
    • 415California
  • 1959: split to create 408 and 707
  • 1991: split to create 510
  • 1997: split to create 650
  • 2015: overlaid by 628
    • 416Ontario
  • 1953: split to create a part of 519
  • 1993: split to create 905
  • 2001: overlaid by 647
  • 2013: overlaid by 437
  • 2025: overlaid by 942
  • area code 387 is reserved as a fifth code for the region
    • 417Missouri
  • created from parts of the area codes 314 and 816
    • 418Quebec, Maine
  • 2008: overlaid by 581
  • 2018: overlaid by 367
  • 273 reserved as a fourth area code for the region.
    • 419Ohio
  • 2002: overlaid by 567
    • 420not in use; available for geographic assignment
    421not in use; available for geographic assignment
    422not in use; available for non-geographic assignment* easily recognizable code
    423Tennessee
  • split of 615
  • 1999: split to create 865
  • 2025: overlaid with 729
    • 424California
  • overlaid on 310
    • 425Washington
  • split of 206
    • 426–427not in use; available for geographic assignment
    428New Brunswick
  • overlaid on 506
    • 429not in use; available for geographic assignment
    430Texas
  • overlaid on 903
    • 431Manitoba
  • overlaid on 204
  • 2022: overlaid by 584
    • 432Western Texas
  • split of 915
    • 433not in use; available for non-geographic assignment
  • easily recognizable code
    • 434Virginia
  • split of 804
    • 435Most of Utah outside the Salt Lake City, Ogden, and Provo metropolitan areas in northern Utah
  • split of 801
    • 436Ohio
  • overlaid on 440
    • 437Ontario
  • overlaid on 416/647
  • 2025: overlaid by 942
  • area code 387 is reserved for the region
    • 438Quebec
  • overlaid on 514
  • 2022: overlaid by 263
    • 439not in use; available for geographic assignment
    440Ohio
  • split of 216
  • 2024: overlaid by 436
    • 441Bermuda
  • 1995: the first of many splits from 809
    • 442California
  • overlaid on 760
    • 443Maryland
  • overlaid on 410
  • 2012: overlaid by 667
    • 444not in use; available for non-geographic assignment
  • easily recognizable code
    • 445overlay of 215 and 267
  • created in 2018
  • one thousands block is assigned to a switch in Tucson, Arizona
    • 446not in use; available for geographic assignment
    447Illinois
  • overlaid on 217
    • 448The Florida Panhandle
  • overlaid on 850
    • 449not in use; available for geographic assignment
    450Quebec
  • split of 514
  • 2010: overlaid by 579
  • 2022: overlaid by 354
    • 451–454not in use; available for geographic assignment
    455not in use; available for non-geographic assignment
  • easily recognizable code
    • 456not in use; became available for geographic assignment in 2023
  • originally reserved for inbound international calls for carrier-specific services
  • 2017: was withdrawn because of lack of demand
  • 2023: returned to the pool of area codes available for future area code relief
    • 457Louisiana
  • overlaid to 318
    • 458Oregon
  • overlaid on 541
    • 459not in use; available for geographic assignment
    460Ontario
  • reserved as a fourth area code to overlay 705/249/683 with no set date of implementation
    • 461–462not in use; available for geographic assignment
    463Indiana
  • overlaid on 317
  • mnemonic: INDiana
    • 464Illinois
  • overlaid on 708
    • 465New York
  • to be overlaid on 347/718/929
    • 466not in use; available for non-geographic assignment
  • easily recognizable code
    • 467not in use; available for geographic assignment
    468Quebec
  • overlaid on 819/873
    • 469Texas
  • overlaid on 214 and 972
  • 2021: overlaid by 945
    • 470Georgia
  • overlaid on area codes 404, 678 and 770
    • 471Mississippi
  • overlaid on 662
    • 472North Carolina
  • overlaid on 910
    • 473Grenada
  • split of 809
  • mnemonic: GRE or GRD
    • 474Saskatchewan
  • overlaid on 306/639
    • 475Connecticut
  • overlaid on 203
    • 476not in use; available for geographic assignment
    477not in use; available for non-geographic assignment
  • easily recognizable code
    • 478Georgia
  • split of 912
    • 479Arkansas
  • split of 501
    • 480Arizona
  • created by a three-way split of 602
  • 2023: combined with 602 and 623 into an overlay complex for the Phoenix metropolitan area
    • 481not in use; available for geographic assignment
    482not in use; available for geographic assignment
    483Alabama
  • to be overlaid on 334
    • 484Pennsylvania
  • overlaid on 610
  • 2022: overlaid by 835
    • 485–486not in use; available for geographic assignment
    487Ontario
  • reserved as a fifth area code to overlay 519/226/548/382 with no set date of implementation
    • 488not in use; available for non-geographic assignment
  • easily recognizable code
    • 489not in use; available for geographic assignment
    490–499not in use; reserved for potential North American Numbering Plan expansion

    500–599

    CodeNumbering plan area or useDateNotes
    500personal communications services
    501Arkansas
    • created for all of Arkansas
    • 1997: split to create 870
    • 2002: split to create 479
    502Kentucky
  • created for all of Kentucky
  • 1954: split to create 606
  • 1999: split to create 270
    • 503Oregon
  • created for all of Oregon
  • 1995: split to create 541
  • 2000: partially overlaid by 971, excluding Clatsop County and Tillamook County
  • 2008: complete overlay implemented
    • 504Louisiana
  • created for all of Louisiana
  • 1957: split to create 318
  • 1998: split to create 225
  • 2001: split to create 985
    • 505New Mexico
  • created for all of New Mexico
  • 2007: split to create 575
    • 506New Brunswick
  • split of 902
  • originally also covered Newfoundland
  • 1962: split to give Newfoundland its own 709 area code
  • 2023: overlaid by 428
    • 507Minnesota
  • split of 612 and 218
  • August 30, 2024: overlaid by 924
    • 508Southeastern Massachusetts
  • split of 617
  • 1997: split to create 978
  • 2001: overlaid by 774
    • 509Washington
  • split of 206
    • 510California
  • used until 1981 for TWX service
  • split of 415
  • 1998: split to create 925
  • 2019: overlaid by 341
    • 511Not assignable; N11 code for local information for transportation and road conditions, local police non-emergency services
    512Texas
  • 1992: split to create 210
  • 1999: split to create 361
  • 2013: overlaid by 737
    • 513Ohio
  • 1996: split to create 937
  • 2023: overlaid by 283
    • 514Quebec
  • 1957: split to create 819
  • 1998: split to create 450
  • 2006: overlaid by 438
  • 2022: overlaid by 263
    • 515Iowa
  • 2000: split to create 641
    • 516New York
  • split of 914
  • 1999: split to create 631
  • 2023: overlaid by 363
    • 517Michigan
  • 2000: split to create 989
    • 518New York
  • 2017: overlaid by 838
    • 519Ontario
  • created from parts of 416 and 613
  • 1957: split to create a part of 705
  • 2006: overlaid by 226
  • 2016: overlaid by 548
  • 2023: overlaid by 382
  • 487 reserved as a fifth area code for the region.
    • 520Arizona
  • split of 602
  • 2001: split to create 928
    • 521personal communications services
    522personal communications services
    523personal communications services
    524personal communications services
    525personal communications services
    526personal communications services
    527personal communications services
    528personal communications services
    529personal communications services
    530California
  • split of 916
  • 2025: overlaid by 837
    • 531Nebraska
  • overlaid on 402
    • 532personal communications services
  • overlaid on area codes 500, 521, 522, 523, 524, 525, 526, 527, 528, 529, 533, 544, 566, 577, and 588
    • 533personal communications services
    534Wisconsin
  • overlaid on 715
    • 535not in use; available for personal communications services
    536not in use; available for geographic assignment
    537Ontario
  • reserved as a fifth area code to overlay 905/289/365/742 with no set date of implementation
    • 538not in use; available for personal communications services
    539Oklahoma
  • overlaid on 918
    • 540Virginia
  • split of 703
  • 2001: split to create 276
  • 2022: overlaid by 826
    • 541Oregon
  • split of 503
  • 2010: overlaid by 458
    • 542–543not in use; available for personal communications services
    544personal communications services
    545–547not in use; available for personal communications services
    548Ontario
  • overlaid on 519/226
  • 2023: overlaid by 382
  • 487 reserved as a fifth area code for the region.
    • 549–550not in use; available for personal communications services
    551New Jersey
  • overlaid on 201
    • 552–554not in use; available for personal communications services
    555not in use; code is reserved for directory assistance applications
  • 1-NPA-555-01XX is used for fictional telephone numbers; 1-NPA-555-1212 is used for directory assistance; and other 1-NPA-555-XXXX numbers can be used for other 555 services
    • 556not in use; available for personal communications services
    557Missouri
  • overlaid on 314
    • 558not in use; available for personal communications services
    559California
  • split of 209
  • 2025: overlaid by 357
    • 560not in use; available for geographic assignment
    561Florida
  • split of 407
  • 2002: split to create 772
  • 2023: overlaid with 728
    • 562California
  • split of 310
    • 563Iowa
  • split of 319
    • 564Washington
  • overlaid on 360
    • 565not in use; available for geographic assignment, but in planning stage in Georgia for overlay with 912
    566personal communications services
    567Ohio
  • overlaid on 419
    • 568Alberta
  • reserved as a fifth area code to overlay 403/780/587/825/368 with no set date of implementation
    • 569not in use; available for personal communications services
    570Pennsylvania
  • split of 717
  • 2013: overlaid by 272
    • 571Virginia
  • overlaid on 703
    • 572Oklahoma
  • overlaid on 405
    • 573Missouri
  • split of 314
  • 2024: overlaid by 235
    • 574Indiana
  • split of 219
    • 575New Mexico
  • split of 505
    • 576not in use; available for geographic assignment
    577personal communications services
    578not in use; available for personal communications services
    579Quebec
  • overlaid on 450
  • 2022: overlaid by 354
    • 580Oklahoma
  • split of 405
    • 581Quebec, Maine
  • overlaid on 418
  • 2018: overlaid by 367
  • 273 reserved as a fourth area code for the region.
    • 582Pennsylvania
  • overlaid on 814
    • 583not in use; available for geographic assignment
    584Manitoba
  • overlaid on 204/431
    • 585New York
  • split of 716
    • 586Michigan
  • split of 810
    • 587Alberta
  • overlaid on 403 and 780
  • 2016: overlaid by 825
  • 2022: overlaid by 368
  • 568 reserved as a fifth area code for the region.
    • 588personal communications services
    589not in use; available for personal communications services
    590–599not in use; reserved for potential North American Numbering Plan expansion

    600–699

    CodeNumbering plan area or useDateNotes
    600Canadian non-geographic tariffed: teleprinter, caller-pays mobile, etc.
    601Mississippi
  • created for all of Mississippi
  • 1997: split to create 228
  • 1999: split to create 662
  • 2005: overlaid by 769
    • 602Arizona
  • created for all of Arizona
  • 1995: split to create 520
  • 1999: split to create 480 and 623
  • 2023: recombined with 480 and 623 into an overlay complex for the Phoenix metropolitan area
    • 603New Hampshire
    604British Columbia
  • created for all of British Columbia
  • 1996: split to create 250
  • 2001: partly overlaid by 778
  • 2008: the overlay was extended to all of 604 as well as 250
  • 2013: overlaid by 236
  • 2019: overlaid by 672
    • 605South Dakota
    606Kentucky
  • split of 502
  • 2000: split to create 859
    • 607New York
  • created from parts of 315 and 716
    • 608Wisconsin
  • created from parts of 414 and 715
  • 2023: overlaid by 353
    • 609New Jersey
  • split of 201
  • 1999: split to create 856
  • 2018: overlaid by 640
    • 610Pennsylvania
  • used for Canadian TWX service until 1992
  • split of 215
  • 1999: overlaid by 484
  • 2022: overlaid by 835
    • 611Not assignable; N11 code for repair service for landline telephones, customer service for wireless carriers
    612Minnesota
  • 1954: split to create 507
  • 1996: split to create 320
  • 1998: split to create 651
  • 2000: split to create 763 and 952
    • 613Ontario
  • 1953: split to create a part of 519
  • 1957: split to create a part of 705
  • 2010: overlaid by 343
  • 2022: overlaid by 753
  • 871 reserved as a fourth area code for the region.
    • 614Ohio
  • 1997: split to create 740
  • 2016: overlaid by 380
    • 615Tennessee
  • split of 901
  • 1995: split to create 423
  • 1997: split to create 931
  • 2015: overlaid by 629
    • 616Michigan
  • 1961: split to create 906
  • 1999: split to create 231
  • 2002: split to create 269
    • 617East-central Massachusetts, including Boston
  • 1988: split to create 508
  • 1997: split to create 781
  • 2001: overlaid by 857
    • 618Illinois
  • 2023: overlaid by 730
    • 619California
  • split of 714
  • 1997: split to create 760
  • 1999: split to create 858
  • 2017: merged with 858 as an overlay
    • 620Kansas
  • split of 316
    • 621Texas
  • overlaid on 713, 281, 832, and 346|713/281/832/346]
    • 622Canadian non-geographic
  • overlaid by 633
    • 623Arizona
  • created by three-way split of 602
  • 2023: combined with 602 and 480 into an overlay complex for the Phoenix metropolitan area
    • 624New York
  • overlaid on 716
    • 625not in use; available for geographic assignment
    626California
  • split of 818
    • 627not in use; available for geographic assignment
  • originally assigned as part of a 3-way split of 707 but was canceled
    • 628California
  • overlaid on 415
    • 629Tennessee
  • overlaid on 615
    • 630Illinois
  • split of 708
  • 2007: overlaid by 331
    • 631New York
  • split of 516
  • 2016: overlaid by 934
    • 632not in use; available for geographic assignment
    633Canadian non-geographic
  • Overlaid on area code 622 on May 15, 2023
    • 634–635not in use; available for geographic assignment
    636Missouri
  • split of 314
    • 637–638not in use; available for geographic assignment
    639Saskatchewan
  • overlaid on 306; originally planned as 474, but was changed to avoid confusion with central office codes
  • 2021: overlaid by 474
    • 640New Jersey
  • overlaid on 609
    • 641Iowa
  • split of 515
    • 642–643not in use; available for geographic assignment
    644not in use; reserved for Canadian non-geographic assignment
    645Florida
  • overlaid on 305/786
    • 646New York
  • overlaid on 212 and a part of 917
  • 2017: overlaid by 332
  • mnemonic: MHN
    • 647Ontario
  • overlaid on 416
  • 2013: overlaid by 437
  • 2025: overlaid by 942
  • area code 387 is reserved for the region
    • 648not in use; available for geographic assignment
    649The Turks and Caicos Islands
  • split of 809
    • 650California
  • split of 415
    • 651Minnesota
  • split of 612
    • 652–654not in use; available for geographic assignment
    655not in use; reserved for Canadian non-geographic assignment
    656Florida
  • overlaid on 813
    • 657California
  • overlaid on 714
    • 658Jamaica
  • overlaid on 876
    • 659Alabama
  • overlaid on 205
    • 660Missouri
  • split of 816
    • 661California
  • split of 805
    • 662Mississippi
  • split of 601
  • 2026: overlaid by 471
    • 663not in use; available for geographic assignment
    664Montserrat
  • split of 809
  • mnemonic: MOI
    • 665not in use; available for geographic assignment
    666not in use; available for non-geographic assignment
  • easily recognizable code
    • 667Maryland
  • created as an overlay of 410/443
    • 668not in use; available for geographic assignment
    669California
  • overlaid on 408
    • 670Northern Mariana Islands
  • Created for membership in NANP
  • 670 was the former country code for the islands
    • 671Guam
  • Created for membership in NANP
  • 671 was the former country code for the island
    • 672British Columbia, and the isolated border town of Hyder, Alaska, US
  • overlaid on 604, 250, 778, and 236
  • 2025: overlaid with 257
    • 673–676not in use; available for geographic assignment
    677not in use; reserved for Canadian non-geographic assignment
    678Georgia
  • overlaid on 404 and 770
  • 2010: overlaid by 470
    • 679Michigan
  • overlaid on 313
    • 680New York
  • overlaid on 315
    • 681West Virginia
  • overlaid on 304
    • 682Texas
  • overlaid on 817
    • 683Ontario
  • overlaid on 705/249
  • 460 reserved as a fourth area code for the region.
    • 684American Samoa
  • 2004: inclusion in NANP
    • 685not in use; available for geographic assignment
    686Virginia
  • overlaid on 804
    • 687not in use; available for geographic assignment
    688not in use; reserved for Canadian non-geographic assignment
    689Florida
  • overlaid on 407
    • 690–699not in use; reserved for potential North American Numbering Plan expansion

    700–799

    CodeNumbering plan area or useDateNotes
    700Implemented for carrier internal use
    701North Dakota
    702Nevada
    • created for all of Nevada
    • 1998: split to create 775
    • 2014: overlaid by 725
    703Virginia
  • created for all of Virginia
  • 1973: split to create 804
  • 1995: split to create 540
  • 2000: overlaid by 571
    • 704North Carolina
  • created for all of North Carolina
  • 1954: split to create 919
  • 1998: split to create 828
  • 2001: overlaid by 980
    • 705Ontario
  • created from parts of 519 and 613
  • 1962: split to create 807
  • 2011: overlaid by 249
  • 2022: overlaid by 683
  • 460 reserved as a fourth area code for the region.
    • 706Georgia
  • split of 404
  • 2007: overlaid by 762
  • prior to 1990, served portions of Baja California, Mexico
  • one of the few non-contiguous area codes in North America
    • 707California
  • split of 415
  • 2023: overlaid by 369
    • 708Illinois
  • split of 506
    • 710US Government special services
  • used until 1981 for TWX service
    • 711Not assignable; N11 code for telecommunications device for the deaf
    712Iowa
    713Texas — overlays with 281, 346, 621, and 832
  • 1983: split to create 409
  • 1996: split to create 281
  • 713 and 281 were later merged into an overlay
  • 1999: 713 and 281 were further overlaid by 832
  • 2014: overlaid by 346
  • 2025: overlaid by 621
    • 714California
  • split of 213
  • 1982: split to create 619
  • 1992: split to create 909
  • 1998: split to create 949
  • 2008: overlaid by 657
    • 715Wisconsin
  • 1955: split to create a part of 608
  • 2010: overlaid by 534
    • 716New York
  • 1954: split to create a part of 607
  • 2002: split to create 585
  • 2023: overlaid by 624
    • 717Pennsylvania
  • 1998: split to create 570
  • 2017: overlaid by 223
    • 718New York
  • split of 212, and originally comprised only Brooklyn, Queens, and Staten Island
  • 1992: The Bronx split off from 212 to become a part of 718
  • 1992: overlaid by 917
  • 1999: overlaid by 347
  • 2011: overlaid by 929
    • 719Colorado
  • split of 303
    • 720Colorado
  • overlaid on 303
  • 2022: overlaid by 983
    • 721Sint Maarten
  • joined the NANP in 2011; previously country code 599.
    • 722not in use; available for non-geographic assignment
  • easily recognizable code
    • 723not in use; available for geographic assignment
    724Pennsylvania
  • split of 412
  • 2001: overlaid by 878
    • 725Nevada
  • overlaid on 702
    • 726Texas
  • overlaid on 210
  • mnemonic: SAN Antonio
    • 727Florida
  • split of 813
    • 728Florida
  • overlaid 2023 on 561
    • 729Tennessee
  • overlaid on 423
    • 730Illinois
  • overlaid on 618
    • 731Tennessee
  • split of 901
    • 732New Jersey
  • split of 908
  • 2001: overlaid by 848
  • mnemonic: SEA
    • 733not in use; available for non-geographic assignment
  • easily recognizable code
    • 734Michigan
  • split of 313
    • 735–736not in use; available for geographic assignment
    737Texas
  • overlaid on 512
    • 738California
  • overlaid on 213/323
    • 739not in use; available for geographic assignment
    740Southeastern and central parts of Ohio
  • split of 614
  • 2015: overlaid by 220
    • 741not in use; available for geographic assignment
    742Ontario
  • overlaid on 289/365/905
  • 537 reserved as a fifth area code for the region.
    • 743North Carolina
  • overlaid on 336
    • 744not in use; available for non-geographic assignment
  • easily recognizable code
    • 745–746not in use; available for geographic assignment
    747California
  • overlaid on 818
    • 748Western and northern parts of Colorado
  • overlaid on 970
    • 749–751not in use; available for geographic assignment
    752not in use; available for geographic assignment
  • originally reserved to overlay 909, but abandoned by number pooling
    • 753Ontario
  • overlaid on 613/343
  • 871 reserved as a fourth area code for the region.
    • 754Florida
  • overlaid on area code 954
    • 755not in use; available for non-geographic assignment
  • easily recognizable code
    • 756not in use; available for geographic assignment
    757Virginia
  • split of 804
  • 2022: overlaid by area code 948
    • 758Saint Lucia
  • split of 809
  • mnemonic: SLU
    • 759not in use; available for geographic assignment
    760California
  • split of 619
  • this was the first part of North America to have its code changed three times: from 213 to 714 1951: to 619 in 1982, and to 760 in 1997
  • was to have originally split off the portion of 760 serving San Diego County to a new 442 area code in late 2008/early 2009; that plan was cancelled
  • 2009: overlaid by 442
    • 761not in use; available for geographic assignment
    762Georgia
  • overlaid on 706
    • 763Minnesota
  • created by a three-way split of 612
    • 764not in use; available for geographic assignment
  • was assigned for numbering relief to 650, but this has been suspended indefinitely
    • 765Indiana
  • split of 317
    • 766not in use; available for non-geographic assignment
  • easily recognizable code
    • 767Commonwealth of Dominica
  • split of 809
  • mnemonic: ROS for Roseau, Dominica's largest city
    • 768not in use; available for geographic assignment
    769Mississippi
  • overlaid on 601
    • 770Georgia
  • split of 404
  • 1998: overlaid by 678
  • covers metropolitan areas outside of Atlanta and fully encircles Atlanta's area code 404
    • 771Washington, D.C.
  • overlaid on 202
    • 772Florida
  • split of 561
    • 773Illinois
  • split of 312
  • 2009: overlaid by 872
    • 774Southeastern Massachusetts
  • overlaid on 508
    • 775Nevada
  • split of 702
    • 776not in use; available for geographic assignment
    777not in use; available for non-geographic assignment
  • easily recognizable code
    • 778British Columbia
  • created as a concentrated overlay of 604
  • extended in 2008 to cover all of 604 and 250
  • 2013: overlaid with 236
  • 2019: overlaid with 672
  • 2025: overlaid with 257
    • 779Illinois
  • overlaid on 815
    • 780Alberta
  • split of 403
  • 2008: overlaid by 587
  • 2016: overlaid by 825
  • 2022: overlaid by 368
  • 568 reserved as a fifth area code for the region.
    • 781Massachusetts
  • split of 617
  • 2001: overlaid by 339
    • 782Nova Scotia and Prince Edward Island
  • overlaid on 902
  • 851 reserved as a third area code for the region.
    • 783not in use; available for geographic assignment
    784Saint Vincent and the Grenadines
  • split of 809
  • mnemonic: SVG or SVI
    • 785Kansas
  • split of 913
    • 786Florida
  • overlaid on 305 only in Miami-Dade County
  • 2008: overlay extended to the Florida Keys
  • 2023: overlaid with 645
  • mnemonic: SUN
    • 787Puerto Rico
  • split of 809
  • 2001: overlaid by 939
  • mnemonic: PUR or PTR
    • 788not in use; available for non-geographic assignment
  • easily recognizable code
    • 789not in use; available for geographic assignment
    790–799not in use; reserved for potential North American Numbering Plan expansion

    800–899

    CodeNumbering plan area or useDateNotes
    800toll-free telephone service
    801Utah
  • created for all of Utah
  • 1997: split to create 435
  • 2009: overlaid by 385
    • 802Vermont
    803South Carolina
  • created for all of South Carolina
  • 1995: split to create 864
  • 1998: split twice to create 843
  • 2020: overlaid by 839
    • 804Virginia
  • split of 703
  • 1996: split to create 757
  • 2001: split to create 434
  • 2024: overlaid by 686
    • 805California
  • split of 213
  • 1999: split to create 661
  • 2018: overlaid by 820
    • 806Texas
  • created from parts of 817 and 915
    • 807Ontario
  • split of 705
    • 808Hawaii
    809Dominican Republic
  • originally assigned c. 1958 to Puerto Rico
  • 1995: split to create 441
  • 1996: split to create 787, 268, 246, 664, 758, 345, 242, and 869
  • 1997: split to create 264, 876, 340, 649, 868, 284, 767, and 473
  • 1998: split to create 784
  • by 2000, served the Dominican Republic exclusively
  • 2005: overlaid by 829
  • 2009: overlaid by 849
    • 810Michigan
  • used until 1981 for TWX service
  • split of 313
  • 1997: split to create 248
  • 2001: split to create 586
    • 811Not assignable; N11 code for regional information
  • in the US, the FCC adopted it as the local underground utility assistance service in 2007
  • in Canada, the CRTC reserved it for non-urgent telehealth services 2005: though not all provinces and territories have yet adopted it
  • formerly used for mobile customer service on some carriers
  • formerly used for some local emergency numbers in Jamaica
    • 812Indiana
  • 2015: overlaid by 930
    • 813Florida
  • split of 305 to give Florida more than one area code
  • 1995: split to create 941
  • 1998: split to create 727
  • 2022: overlaid by 656
    • 814Pennsylvania
  • 2021: overlaid by 582
    • 815Illinois
  • 1957: split to create a part of 309
  • 2007: overlaid by 779
    • 816Missouri
  • 1950: split to create a part of 417
  • 1997: split to create 660
  • 2023: overlaid by 975
    • 817Texas
  • created from parts of 214 and 915
  • 1957: split to create a part of 806
  • 1997: split to create 254 and 940
  • 2000: overlaid by 682
    • 818California
  • split of 213
  • 1997: split to create 626
  • 2009: overlaid by 747
    • 819Quebec
  • split of 514
  • originally also covered a part of the Northwest Territories
  • 1997: split to create a part of 867
  • 2012: overlaid by 873
  • 2022: overlaid by 468
    • 820California
  • overlaid on 805
    • 821South Carolina
  • overlaid on 864
    • 822not in use; available for toll-free assignment
    823–824not in use; available for geographic assignment
    825Alberta
  • overlaid on 403, 780, and 587
  • 2022: overlaid by 368
    • 826Virginia
  • overlaid on 540
    • 827not in use; available for geographic assignment
    828North Carolina
  • split of 704
    • 829Dominican Republic
  • overlaid on 809
    • 830Texas
  • split of 210
    • 831California ; San Benito County ; and Santa Cruz County
  • split of 408
    • 832Texas
  • overlaid on 713 and 281
  • 2014: overlaid by 346
  • 2025: overlaid by 621
    • 833toll-free telephone service
  • created
    • 834not in use; available for geographic assignment
    835Pennsylvania
  • overlaid on 610/484
    • 836not in use; available for geographic assignment
    837California
  • overlaid on 530
  • California's 40th area code
    • 838New York
  • overlaid on 518
    • 839South Carolina
  • overlaid on 803
    • 840California
  • overlaid on 909
    • 841–842not in use; available for geographic assignment
    843South Carolina
  • split of 803
  • 2015: overlaid by 854
  • mnemonic: TIDes for being along the South Carolina Coast
    • 844toll-free telephone service
  • created
    • 845New York
  • created by splitting from 914
  • 2023: overlaid with 329
    • 846not in use; available for geographic assignment
    847Illinois
  • split of 708
  • 2002: overlaid by 224
    • 848New Jersey
  • overlaid on 732
    • 849Dominican Republic
  • overlaid on 809 and 829
    • 850northwestern Florida
  • split of 904
  • 2021: overlaid by 448
    • 851Nova Scotia and Prince Edward Island
  • reserved as a third area code to overlay 902/782 with no set date of implementation
    • 852–853not in use; available for geographic assignment
    854South Carolina
  • overlaid on 843
    • 855toll-free telephone service
  • created as a further expansion of 800
    • 856New Jersey
  • split of 609
    • 857East-central Massachusetts, including Boston
  • overlaid on 617
    • 858California
  • split of 619
  • 2017: merged with 619 as an overlay
    • 859Kentucky
  • split of 606
  • mnemonic: UKY — the University of Kentucky is in Lexington, the area's biggest city by population
    • 860Northern and eastern Connecticut
  • split of 203
  • 2014: overlaid by 959
    • 861Illinois
  • overlaid on 309
    • 862New Jersey
  • overlaid on 973
    • 863Florida
  • split of 941
    • 864South Carolina
  • split of 803
  • 2024: overlaid by 821
  • mnemonic: UNIversity — 24 colleges and universities reside in this area code, including Anderson University, Bob Jones University, Clemson University, Furman University, Converse College, Wofford College, and University of South Carolina Upstate
    • 865Tennessee
  • split of 423
  • mnemonic: VOL — the University of Tennessee, whose sports teams are the "Volunteers", is in Knoxville, the area's biggest city by population
    • 866toll-free telephone service
  • created as a further expansion of 800
    • 867the Canadian Territories: Yukon, Northwest Territories, and Nunavut
  • created from parts of 403 and 819
  • mnemonic: TOP of the world
  • mnemonic: 1867 was the year of Canada's confederation
    • 868Trinidad and Tobago
  • split of 809
  • mnemonic: TNT
    • 869Saint Kitts and Nevis
  • split of 809
    • 870Arkansas
  • split of 501
  • 2024: overlaid by 327
    • 871Ontario
  • reserved as a fourth area code to overlay 613/343/753 with no set date of implementation
    • 872Illinois
  • overlay for 312 and 773, entered service on 7 November 2009
  • mnemonic: USA
    • 873Quebec
  • overlaid on 819
  • 2022: overlaid by 468
    • 874–875not in use; available for geographic assignment
    876Jamaica
  • split of 809
  • 2018: overlaid by 658
    • 877toll-free telephone service
  • created
    • 878Pennsylvania and suburbs
  • overlaid on 412 and 724
    • 879Newfoundland and Labrador
  • overlay with 709 parent NPA
    • 880, 881, 882not in use; available for toll-free assignment
  • Legacy use from 1996 to April 2004 for access to toll-free numbers from other NANP countries. Paired with 800, 888, and 877, respectively.
    • 883–887not in use; available for toll-free assignment
    888toll-free telephone service
  • created
    • 889not in use; available for toll-free assignment
    890–899not in use; reserved for potential North American Numbering Plan expansion

    900–999

    CodeNumbering plan area or useDateNotes
    900premium-rate telephone numbers
    901Tennessee
    • created for all of Tennessee
    • 1954: split to create 615
    • 2001: split to create 731
    902Nova Scotia and Prince Edward Island
  • originally also covered New Brunswick
  • 1955: split to give New Brunswick its own 506 area code
    • Newfoundland was added to the service area when it joined Canada in 1949. When 506 was created, Newfoundland was assigned to the new code along with New Brunswick. In 1962, Newfoundland received its own code, 709.
    • 2014: overlaid by 782
    • 851 reserved as a third area code for the region.
    903Texas
  • prior to October 18, 1980, the area code served Tijuana, Mexico, and adjacent areas bordering the United States
  • split of 214
  • 2003: overlaid by 430
    • 904Florida
  • split of 305
  • 1995: split to create 352
  • 1997: split to create 850
  • 2001: split to create 386
  • 2024: overlaid by 324
    • 905Ontario
  • prior to 1991, was the area code for Mexico City
  • split of 416
  • 2001: overlaid by 289
  • 2013: overlaid by 365
  • 2021: overlaid by 742
  • 537 reserved as a fifth area code for the region.
    • 906Michigan
  • split of 616
    • 907Alaska
    908New Jersey
  • split of 201
  • 1997: split to create 732
    • 909California
  • split of 714
  • 2004: split to create 951
  • 2021: overlaid by 840
    • 910North Carolina
  • used until 1981 for TWX service
  • split of 919
  • 1997: split to create 336
  • 2022: overlaid by 472
    • 911Not assignable; N11 code for emergency services
    912Georgia
  • split of 404 to give Georgia two area codes
  • 2000: split to create 229 and 478
    • 913Kansas
  • 1997: split to create 785
    • 914New York
  • 1951: split to create 516
  • 2000: split to create 845
    • 915Texas
  • 1953: split to create a part of 817
  • 1957: split to create a part of 806
  • 2003: split to create 325 and 432
    • 916California
  • created for northern third of California
  • 1950: remapped to eastern part of norther and central California
  • 1958: split to create 209
  • 1997: split to create 530
  • 2018: overlaid by 279
    • 917New York
  • overlaid on 212 and 718
  • 1999: parts overlaid by 646
  • 1999: parts overlaid by 347
  • 2011: parts overlaid by 929
  • 2017: parts overlaid by 332
    • 918Oklahoma
  • split of 405 and to give Oklahoma two area codes, one centered on Oklahoma City and the other centered on Tulsa
  • 2011: overlaid by 539
    • 919North Carolina
  • split of 704 to give North Carolina two area codes
  • 1993: split to create 910
  • 1998: split to create 252
  • 2012: overlaid by 984
    • 920Wisconsin
  • split of 414
  • 2023: overlaid by 274
    • 921not in use; available for geographic assignment
    922not in use; available for non-geographic assignment
  • easily recognizable code
    • 923not in use; available for geographic assignment
    924Minnesota
  • Overlaid on 507
    • 925California
  • split of 510
    • 926not in use; available for geographic assignment
    927not in use; available for geographic assignment
  • was reserved for cellular telephones in 407, but this has been cancelled
    • 928Arizona
  • split of 520
    • 929New York
  • overlaid on 347, 718, and a part of 917
    • 930Indiana
  • overlaid on 812
    • 931Tennessee
  • split of 615
    • 932not in use; available for geographic assignment
  • once reserved as a third area code for West Virginia, but it was replaced by a 304-932 exchange area code + exchange number in Charleston
    • 933not in use; available for non-geographic assignment
  • easily recognizable code
    • 934New York
  • overlaid on 631
    • 935not in use; available for geographic assignment
  • assigned for relief in 619, but suspended indefinitely
    • 936Texas
  • split of 409
    • 937Ohio
  • split of 513
  • 2020: overlaid by 326
    • 938Alabama
  • overlaid on 256
    • 939Puerto Rico
  • overlaid on 787
    • 940Texas
  • split of 817
    • 941Florida
  • split of 813
  • 1999: split to create 863
  • 2002: split to create 239
    • 942Toronto metropolitan area
  • overlaid 416/647/437
    • 943Georgia
  • overlaid 404, 770, 678, and 470
    • 944not in use; available for non-geographic assignment
  • easily recognizable code
    • 945Texas
  • overlaid on 214, 469, and 972
    • 946not in use; available for geographic assignment
    947Michigan
  • overlaid on 248
    • 948Virginia
  • overlaid on 757
    • 949California
  • split of 714
    • 950not assignable as an area code
  • Conflicts with the original use of exchange number 950, which was originally used to access competing interexchange carriers. A subscriber would call 950-XXXX to reach a specific carrier, then dial the long-distance destination number. This feature group 'B' has been rendered obsolete by 1010xxx "dial-around" feature group 'D', but the exchange remains reserved in each individual area code.
    • 951California
  • split of 909
    • 952Minnesota
  • created by three-way split of 612
    • 953not in use; available for geographic assignment
    954Florida
  • split of 305
  • 2002: overlaid by 754
    • 955not in use; available for non-geographic assignment
  • easily recognizable code
    • 956Texas
  • split of 210
    • 957–958not in use; available for geographic assignment
    959Northern and eastern Connecticut
  • overlaid on 860
    • 960–969not in use; reserved in case a block of consecutive numbers is ever needed966 is an easily recognizable code
    970Colorado
  • split of 303
    • 971Oregon
  • 2000: partially overlaid on 503; in 2008, Clatsop County and Tillamook County, originally excluded from the overlay, were added to it
    • 972Texas
  • split of 214
  • 1999: 214 and 972 were merged and overlaid with 469
  • 2021: overlaid by 945
    • 973New Jersey
  • split of 201
  • 2001: overlaid by 862
    • 974not in use; available for geographic assignment
    975Missouri
  • overlaid on 816
    • 976not in use; available for geographic assignment
  • conflicts with the premium rate services exchange
    • 977not in use; available for non-geographic assignment
  • easily recognizable code
    • 978Northeastern Massachusetts
  • split of 508
  • 2001: overlaid by 351
    • 979Texas
  • split of 409
    • 980North Carolina
  • overlaid on 704
    • 981–982not in use; available for geographic assignment
    983Denver, Colorado
  • overlaid on 303/720
    • 984North Carolina
  • overlaid on 919
    • 985Louisiana
  • split of 504
    • 986Idaho
  • overlaid on 208
    • 987not in use; available for geographic assignment
    988an N11 short code for the Suicide & Crisis Lifeline; not assignable as an area code
  • Created conflicts in area code regions that allowed seven-digit dialling and had been using numbers beginning in 988; a total of 82 area codes switched to ten-digit dialling as a result.
    • 989Michigan
  • split of 517
    • 990–999not in use; reserved for potential North American Numbering Plan expansion

    Area codes by country, state, province, and regions

    Future area codes are in italic type face.

    Caribbean and Atlantic islands

    Nation or territoryCodes
    Anguilla264
    Antigua and Barbuda268
    The Bahamas242
    Barbados246
    Bermuda441
    British Virgin Islands284
    Cayman Islands345
    Dominica767
    Dominican Republic809, 829, 849
    Grenada473
    Jamaica658, 876
    Montserrat664
    Puerto Rico787, 939
    Saint Kitts and Nevis869
    Saint Lucia758
    Saint Vincent and the Grenadines784
    Sint Maarten721
    Trinidad and Tobago868
    Turks and Caicos Islands649
    U.S. Virgin Islands340

    Summary table