Area codes 541 and 458


Area codes 541 and 458 are telephone area codes in the North American Numbering Plan for most of the U.S. state of Oregon, excluding only the northwestern corner of the state. The service area includes the cities of Eugene, Springfield, Corvallis, Albany, Grants Pass, Medford, Bend, Ashland, Klamath Falls, The Dalles, Burns, Lakeview, and Pendleton, as well as the coastal region from Lincoln County to the California border. Area code 541 was created in an area code split from area code 503 on November 5, 1995. Area code 458 was added to the same service area on February 10, 2010 to form an overlay.

History

Area code 503 was used for the entire state of Oregon until November 5, 1995, when the numbering plan area was reduced to just the populous northwestern corner of the state, including Portland and Salem, and area code 541 began service for the rest of the state. The dividing line ran east and south of Portland.
This was intended as a long-term solution, as northwest Oregon contains most of Oregon's population, and with it the great majority of Oregon's landlines and cell phones. However, by 2007, 541 was quickly exhausting central office codes, due to the proliferation of cell phones and pagers, particularly in Eugene, Corvallis and Medford.
To mitigate central office code exhaustion, the Oregon Public Utility Commission approved an overlay numbering plan with area code 458 for the entire area, resulting in mandatory 10-digit dialing for that area. Am overlay was chosen rather than a split to spare residents, particularly those east of the Willamette Valley, the expense of changing their numbers. Oregon's other NPA already had this requirement. Ten-digit dialing was phased in beginning in July 2009, becoming mandatory in January 2010. The first exchange to be issued in the 458 area code was 205 in Eugene in August 2011.
The numbering plan area comprises parts of four local access and transport areas. Most of the numbering plan area is part of the Portland LATA, while the southwest portion is the Eugene LATA. Malheur County is part of the Boise/southern Idaho LATA and the Quinn, Oregon, exchange, in the Reno/northern Nevada LATA, while part of northeast Oregon is in the Spokane, Washington LATA

Central office codes

PrefixLocationCountyIntroduced
200Cascade LocksHood RiverOctober 3, 2011
201EugeneLaneMarch 28, 2012
202BendDeschutesSeptember 11, 2012
203Rogue RiverJacksonOctober 6, 2014
204ToledoLincolnMarch 17, 2016
205EugeneLaneJune 16, 2011
206BendDeschutesAugust 18, 2011
207VenetaLaneApril 29, 2014
209EugeneLaneMarch 14, 2017
210EugeneLaneOctober 6, 2014
212Grants PassJosephineOctober 6, 2014
213WallowaWallowaJuly 6, 2016
214PhoenixJacksonApril 18, 2014
215EugeneLaneOctober 16, 2014
216MarcolaLaneApril 18, 2014
217Junction CityLaneNovember 30, 2015
218PrinevilleCrookDecember 22, 2015
219HermistonUmatillaMarch 4, 2016
220Central PointJacksonAugust 21, 2017
221EugeneLaneMarch 13, 2017
223LebanonLinnOctober 26, 2017
224OntarioMalheurJune 15, 2016
225MedfordJacksonFebruary 19, 2016
226MedfordJacksonApril 11, 2017
227ProspectJacksonMarch 18, 2016
228NewportLincolnSeptember 21, 2018
229Grants PassJosephineJuly 29, 2016
230Coos BayCoosOctober 5, 2017
231CulverJeffersonSeptember 7, 2016
232Klamath FallsKlamathOctober 19, 2017
233AlbanyLinnOctober 26, 2017
234EugeneLaneMarch 12, 2018
235BoardmanMorrowAugust 6, 2018
236WascoShermanAugust 6, 2018
237Hood RiverHood RiverOctober 9, 2018
238BandonCoosDecember 4, 2018
239EugeneLaneJanuary 30, 2019
240EugeneLaneSeptember 18, 2019
241EchoUmatillaOctober 24, 2019
242ImblerUnionOctober 24, 2019
243GlendaleDouglasOctober 24, 2019
244Myrtle CreekDouglasOctober 24, 2019
245EugeneLaneOctober 25, 2019
246Hood RiverHood RiverJanuary 14, 2020
247EugeneLaneJanuary 17, 2020
248LowellLaneDecember 16, 2020
249ChiloquinKlamathMay 13, 2020
250EugeneLaneJuly 10, 2020
251OntarioMalheurJanuary 27, 2020
252OntarioMalheurSeptember 10, 2020
253AlbanyLinnSeptember 16, 2020
254Klamath FallsKlamathSeptember 28, 2020
255HermistonUmatillaSeptember 28, 2020
256BendDeschutesAugust 15, 2016
257Grants PassJosephineNovember 25, 2020
258Rogue RiverJacksonApril 6, 2020
259BrownsvilleLinnFebruary 1, 2021
260BrookingsCurryMarch 3, 2021
261EugeneLaneMarch 3, 2021
262AlbanyLinnMarch 18, 2021
263Silver LakeLakeDecember 29, 2021
264Junction CityLaneApril 22, 2021
265White CityJacksonApril 29, 2021
266LebanonLinnMay 27, 2021
267PowersCoosJune 23, 2021
268CoquilleCoosJune 23, 2021
269HalseyLinnJune 23, 2021
270VenetaLaneJune 30, 2021
271RoseburgDouglasJune 30, 2021
272CorvallisBentonAugust 20, 2021
273EugeneLaneAugust 24, 2021
274Central PointJacksonAugust 27, 2021
275CreswellLaneNovember 2, 2021
276OntarioMalheurSeptember 13, 2021
277NewportLincolnNovember 9, 2021
278AlbanyLinnNovember 9, 2021
279FlorenceLaneNovember 15, 2021
280OaklandDouglasNovember 23, 2021
281BendDeschutesDecember 14, 2021
282Cottage GroveLaneDecember 14, 2021
283JacksonvilleJacksonDecember 15, 2021
284HarrisburgLinnJanuary 20, 2022
285AlbanyLinnMarch 8, 2022
286O'BrienJosephineFebruary 22, 2022
287PrinevilleCrookMarch 14, 2022
288Gold BeachCurryMarch 21, 2022
292BendDeschutesFebruary 4, 2016
300HermistonUmatillaOctober 25, 2018
301SelmaJosephineMay 16, 2022
345EnterpriseWallowaJuly 16, 2021
355BendDeschutesOctober 17, 2018
356EugeneLaneJuly 28, 2020
400CulverJeffersonOctober 25, 2018
433ValeMalheurMarch 21, 2022
446OntarioMalheurFebruary 5, 2021
455Coos BayCoosSeptember 13, 2021
457NyssaMalheurJune 23, 2021
459Blue RiverLaneMay 30, 2019
463JosephWallowaFebruary 9, 2022
466BandonCoosFebruary 25, 2022
488TalentJacksonJune 3, 2021
500SistersDeschutesAugust 28, 2018
505Shady CoveJacksonJuly 6, 2015
529TalentJacksonJuly 28, 2020
544EugeneLaneSeptember 13, 2021
546YachatsLincolnOctober 11, 2017
562WaldportLincolnOctober 11, 2017
588The DallesWascoSeptember 13, 2021
592Cave JunctionJosephineAugust 11, 2020
600BendDeschutesAugust 24, 2018
624North PowderUnionFebruary 15, 2022
625BonanzaKlamathMarch 2, 2022
632IoneMorrowFebruary 9, 2022
646Cascade LocksHood RiverFebruary 1, 2022
658MedfordJacksonJuly 24, 2018
666BendDeschutesJuly 14, 2020
675OakridgeLaneMarch 14, 2016
687MoroShermanFebruary 15, 2022
703CanyonvilleDouglasMarch 7, 2016
710Coos BayCoosOctober 9, 2019
723BurnsHarneyFebruary 1, 2022
726MonumentGrantFebruary 15, 2022
742DiamondHarneyFebruary 15, 2022
746Grass ValleyShermanFebruary 7, 2022
757Milton-FreewaterUmatillaJuly 13, 2016
763AshlandJacksonFebruary 23, 2022
777JeffersonMarionSeptember 7, 2017
783Depoe BayLincolnFebruary 23, 2022
787HeppnerMorrowFebruary 7, 2022
800MadrasJeffersonAugust 28, 2018
802RoseburgDouglasJanuary 25, 2016
803RoseburgDouglasApril 2, 2019
832Mount Hood-ParkdaleHood RiverFebruary 18, 2022
836BendDeschutesFebruary 9, 2021
837MitchellWheelerFebruary 14, 2022
846FieldsHarneyFebruary 18, 2022
854The DallesWascoSeptember 11, 2018
867EugeneLaneNovember 19, 2021
868South BeachLincolnOctober 11, 2017
877La GrandeUnionSeptember 13, 2021
886BeattyKlamathMarch 2, 2022
888AthenaUmatillaApril 14, 2015
895EugeneLaneOctober 23, 2020
899RedmondDeschutesOctober 26, 2018
900AthenaUmatillaOctober 25, 2018
901Coos BayCoosNovember 16, 2021
902CoveUnionJanuary 19, 2022
910EugeneLaneApril 16, 2021
946RiddleDouglasJuly 28, 2020
976
987GilchristKlamathFebruary 4, 2022
999UmatillaUmatillaSeptember 7, 2017