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
| Code | Numbering plan area or use | Date | Notes |
| 200 | Not in use; available for non-geographic assignment | ||
| 201 | North-east New Jersey | ||
| 202 | Washington, D.C. | ||
| 203 | South-west Connecticut | ||
| 204 | Manitoba | ||
| 205 | Western and central Alabama | ||
| 206 | Washington | ||
| 207 | Maine | ||
| 208 | Idaho | ||
| 209 | Part of central California | ||
| 210 | Texas | ||
| 211 | Not assignable; N11 code for community services, local/regional information service | ||
| 212 | Borough of Manhattan in New York City | ||
| 213 | California | ||
| 214 | Texas | ||
| 215 | Pennsylvania | ||
| 216 | Ohio | ||
| 217 | Central Illinois | ||
| 218 | Northern Minnesota | ||
| 219 | Indiana | ||
| 220 | Central Ohio outside of Franklin County | ||
| 221 | Not in use; available for geographic assignment | ||
| 222 | Not in use; available for non-geographic assignment | ||
| 223 | South-central Pennsylvania | ||
| 224 | Illinois | ||
| 225 | East-central Louisiana | ||
| 226 | Southwestern Ontario | ||
| 227 | Western Maryland | ||
| 228 | Mississippi | ||
| 229 | Southwestern Georgia | ||
| 230 | Not in use; available for geographic assignment | ||
| 231 | Northwestern Michigan | ||
| 232 | Not in use; available for geographic assignment | ||
| 233 | Not in use; available for non-geographic assignment | ||
| 234 | Northeastern Ohio | ||
| 235 | Eastern Missouri | ||
| 236 | British Columbia | ||
| 237 | Not in use; available for geographic assignment | ||
| 238 | Not in use; available for geographic assignment | ||
| 239 | Southwest Florida | ||
| 240 | Western Maryland | ||
| 241 | Not in use; available for geographic assignment | ||
| 242 | The Bahamas | ||
| 243 | Not in use; available for geographic assignment | ||
| 244 | Not in use; available for non-geographic assignment | ||
| 245 | Not in use; available for geographic assignment | ||
| 246 | Barbados | ||
| 247 | Not in use; available for geographic assignment | ||
| 248 | Michigan | ||
| 249 | Ontario | ||
| 250 | British Columbia | ||
| 251 | Alabama | ||
| 252 | North Carolina | ||
| 253 | Washington | ||
| 254 | Texas | ||
| 255 | Not in use; available for non-geographic assignment | ||
| 256 | Alabama | ||
| 257 | British Columbia | ||
| 258 | Not in use; available for geographic assignment | ||
| 259 | Not in use; available for geographic assignment | ||
| 260 | Indiana | ||
| 261 | Not in use; available for geographic assignment | ||
| 262 | Wisconsin | ||
| 263 | Quebec | ||
| 264 | Anguilla | ||
| 265 | Not in use; available for geographic assignment | ||
| 266 | Not in use; available for non-geographic assignment | ||
| 267 | Pennsylvania | ||
| 268 | Antigua and Barbuda | ||
| 269 | Michigan | ||
| 270 | Kentucky | ||
| 271 | Not in use; available for geographic assignment | ||
| 272 | Pennsylvania | ||
| 273 | Quebec, Maine | ||
| 274 | Wisconsin | ||
| 275 | Not in use; available for geographic assignment | ||
| 276 | Virginia | ||
| 277 | Not in use; available for non-geographic assignment | ||
| 278 | Not in use, but reserved for future geographic assignment | ||
| 279 | California | ||
| 280 | Not in use; available for geographic assignment | ||
| 281 | Texas | ||
| 282 | Not in use; available for geographic assignment | ||
| 283 | Ohio | ||
| 284 | British Virgin Islands | ||
| 285–287 | Not in use; available for geographic assignment | ||
| 288 | Not in use; available for non-geographic assignment | ||
| 289 | Ontario | ||
| 290–299 | Not in use; reserved for potential North American Numbering Plan expansion |