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Area Code Listing, by Number

The cities listed with each area code are the major cities for that area code; this originated as the city in which the switch computer for that area code is located, but is no longer the case. The cities listed are not intended to be exhaustive.

This list is updated only when an Internet user informs me of a (pending) change. There are no special data sources from which this is generated -- just the cooperation of the Net. I do not have anything to do with phone companies etc; I do research in computer security, and this is just a random service for/of/by the Internet community.

See also the listing by state/country and the NANPA data. There's also a listing at geocities and areacode-info.com
Area CodeRegionTimezone Offset (from UTC)Description
52+55MX-6 Mexico: Mexico City area (country code + city code)
201NJ-5 N New Jersey: Jersey City, Hackensack (see split 973, overlay 551)
202DC-5 Washington, D.C.
203CT-5 Connecticut: Fairfield County and New Haven County; Bridgeport, New Haven (see 860)
204MB-6 Canada: Manitoba
205AL-6 Central Alabama (including Birmingham; excludes the southeastern corner of Alabama and the deep south; see splits 256 and 334)
206WA-8 W Washington state: Seattle and Bainbridge Island (see splits 253, 360, 425; overlay 564)
207ME-5 Maine
208ID-7/-8 Idaho
209CA-8 Cent. California: Stockton (see split 559)
210TX-6 S Texas: San Antonio (see also splits 830, 956)
211---- Local community info / referral services
212NY-5 New York City, New York (Manhattan; see 646, 718)
213CA-8 S California: Los Angeles (see 310, 323, 626, 818)
214TX-6 Texas: Dallas Metro (overlays 469/972)
215PA-5 SE Pennsylvania: Philadelphia (see overlays 267, 445)
216OH-5 Cleveland (see splits 330, 440)
217IL-6 Cent. Illinois: Springfield
218MN-6 N Minnesota: Duluth
219IN-5 NW Indiana: Gary (see 260, split 574, 260)
224IL-6 Northern NE Illinois: Evanston, Waukegan, Northbrook (overlay on 847, eff 1/5/2002)
225LA-6 Louisiana: Baton Rouge, New Roads, Donaldsonville, Albany, Gonzales, Greensburg, Plaquemine, Vacherie
228MS-6 S Mississippi (coastal areas, Biloxi, Gulfport; split from 601)
229GA-5 SW Georgia: Albany (split from 912; see also 478; perm 8/1/00)
231MI-5 W Michigan: Northwestern portion of lower Peninsula; Traverse City, Muskegon, Cheboyhan
234OH-5 NE Ohio: Canton, Akron (overlaid on 330; perm 10/30/00)
236VA-5 Virginia (region unknown) / Unassigned?
239FL-5 Florida (Lee, Collier, and Monroe Counties, excl the Keys; see 305; eff 3/11/02; mand 3/11/03)
240MD-5 W Maryland: Silver Spring, Frederick (overlay, see 301)
242---5 Bahamas
246---4 Barbados
248MI-5 Michigan: Oakland County (split from 810; see overlay 947)
249MD-5 Maryland: Gaithersburg area (?)
250BC-8 Canada: British Columbia (see 604)
251AL-6 S Alabama: Mobile and coastal areas, Jackson, Evergreen, Monroeville (split from 334, eff 6/18/01; see also 205, 256)
252NC-5 E North Carolina (Rocky Mount; split from 919)
253WA-8 Washington: South Tier - Tacoma, Federal Way (split from 206, see also 425; overlay 564)
254TX-6 Central Texas (Waco, Stephenville; split, see 817, 940)
256AL-6 E and N Alabama (Huntsville, Florence, Gadsden; split from 205; see also 334)
260IN-5 NE Indiana: Fort Wayne (see 219)
262WI-6 SE Wisconsin: counties of Kenosha, Ozaukee, Racine, Walworth, Washington, Waukesha (split from 414)
264---4 Anguilla (split from 809)
267PA-5 SE Pennsylvania: Philadelphia (see 215)
268---4 Antigua and Barbuda (split from 809)
269MI-5 SW Michigan: Kalamazoo, Saugatuck, Hastings, Battle Creek, Sturgis to Lake Michigan (split from 616)
270KY-6 W Kentucky: Bowling Green, Paducah (split from 502)
276VA-5 S and SW Virginia: Bristol, Stuart, Martinsville (split from 540; perm 9/1/01, mand 3/16/02)
278MI-5 Michigan (overlaid on 734, SUSPENDED)
280MD-5 Maryland (region unknown)
281TX-6 Texas: Houston Metro (split 713; overlay 832)
282IL-6 Illinois (region unknown)
283OH-5 SW Ohio: Cincinnati (cancelled: overlaid on 513)
284---4 British Virgin Islands (split from 809)
289ON-5 Canada: S Cent. Ontario: Greater Toronto Area -- Durham, Halton, Hamilton-Wentworth, Niagara, Peel, York, and southern Simcoe County (excluding Toronto -- overlaid on 905, eff 6/9/01)
301MD-5 W Maryland: Silver Spring, Frederick, Camp Springs, Prince George's County (see 240)
302DE-5 Delaware
303CO-7 Central Colorado: Denver (see 970, also 720 overlay)
304WV-5 West Virginia
305FL-5 SE Florida: Miami, the Keys (see 786, 954; 239)
306SK-6/-7 Canada: Saskatchewan
307WY-7 Wyoming
308NE-6/-7 W Nebraska: North Platte
309IL-6 W Cent. Illinois: Peoria
310CA-8 S California: Beverly Hills, West Hollywood, West Los Angeles (see split 562; overlay 424 -- approval denied)
311---- Reserved for special applications
312IL-6 Illinois: Chicago (downtown only -- in the loop; see 773; overlay 872)
313MI-5 Michigan: Detroit and suburbs (see 734)
314MO-6 SE Missouri: St Louis city and parts of the metro area only (see 573, 636, overlay 557)
315NY-5 N Cent. New York: Syracuse
316KS-6 S Kansas: Wichita (see split 620)
317IN-6 Cent. Indiana: Indianapolis (see 765)
318LA-6 N Louisiana: Shreveport, Ruston, Monroe, Alexandria (see split 337)
319IA-6 E Iowa: Cedar Rapids (see split 563)
320MN-6 Cent. Minnesota: Saint Cloud (rural Minn, excl St. Paul/Minneapolis)
321FL-5 Florida: Brevard County, Cape Canaveral area; Metro Orlando (split from 407)
323CA-8 S California: Los Angeles (outside downtown: Hollywood; split from 213)
325TX-6 Central Texas: Abilene, Sweetwater, Snyder, San Angelo (split from 915)
327KY-5 Kentucky: Maceo
330OH-5 NE Ohio: Akron, Canton, Youngstown; Mahoning County, parts of Trumbull/Warren counties (see splits 216, 440, overlay 234)
331IL-6 W NE Illinois, western suburbs of Chicago (part of what used to be 708; overlaid on 630; perm NONE, mand t.b.a.)
334AL-6 S Alabama: Auburn/Opelika, Montgomery and coastal areas (part of what used to be 205; see also 256, split 251)
336NC-5 Cent. North Carolina: Greensboro (split from 910)
337LA-6 SW Louisiana: Lake Charles, Lafayette (see split 318)
339MA-5 Massachusetts: Boston surburbs, to the south and west (see splits 617, 508; overlaid on 781, eff 5/2/2001)
340---4 US Virgin Islands (see also 809)
341CA-8 (overlay on 510; SUSPENDED)
345---5 Cayman Islands
347NY-5 New York (overlay for 718: NYC area, except Manhattan)
351MA-5 Massachusetts: north of Boston to NH, 508, and 781 (overlaid on 978, eff 4/2/2001)
352FL-5 Florida: Gainesville area, Ocala, Crystal River (split from 904)
353WI-6 Wisconsin (region unknown)
354---- Canada (region unknown)
358PA-5 Pennsylvannia (region unknown)
360WA-8 W Washington State: Olympia, Bellingham (except Seattle area; part of what used to be 206; see overlay 564)
361TX-6 S Texas: Corpus Christi (split from 512; eff 2/13/99)
369CA-8 Solano County (perm 12/02/00, mand 06/02/01)
380OH-5 Ohio (region unknown)
381VA-5 Virginia (region unknown)
383ME-5 Maine (region unknown)
385UT-7 Utah: Salt Lake City Metro (split from 801, eff 3/30/02 POSTPONED; see also 435)
386FL-5 N central Florida: Lake City (split from 904, perm 2/15/01, mand 11-05-01)
401RI-5 Rhode Island
402NE-6 E Nebraska: Omaha, Lincoln
403AB-7 Canada: Southern Alberta (see 780, 867)
404GA-5 N Georgia: Atlanta and suburbs (see overlay 678, split 770)
405OK-6 W Oklahoma: Oklahoma City (see 580)
406MT-7 Montana
407FL-5 Central Florida: Metro Orlando (see overlay 689, eff 7/02; split 321)
408CA-8 Cent. Coastal California: San Jose (see overlay 669)
409TX-6 SE Texas: Galveston, Port Arthur (splits 936, 979)
410MD-5 E Maryland: Baltimore, Annapolis, Chesapeake Bay area, Ocean City (see 443)
411---- Reserved for special applications
412PA-5 W Pennsylvania: Pittsburgh (see split 724, overlay 878)
413MA-5 W Massachusetts: Springfield
414WI-6 SE Wisconsin: Milwaukee County (see splits 920, 262)
415CA-8 California: San Francisco County and Marin County on the north side of the Golden Gate Bridge, extending north to Sonoma County (see 650)
416ON-5 Canada: S Cent. Ontario: Toronto (see overlay 647, eff 3/5/01)
417MO-6 SW Missouri: Springfield
418QC-5/-4 Canada: NE Quebec: Quebec
419OH-5 NW Ohio: Toledo (see overlay 567, perm 1/1/02)
420WI-6 Wisconsin (region unknown)
423TN-5 E Tennessee: Chattanooga, Bristol, Johnson City, Kingsport, Greeneville (see split 865; part of what used to be 615)
424CA-8 S California: Los Angeles (see split 562; overlaid on 310 PENDING)
425WA-8 Washington: North Tier - Everett, Bellevue (split from 206, see also 253; overly 564)
430TX-6 NE Texas: Tyler (overlaid on 903, eff 7/20/02)
432TX-7/-6 W Texas: Big Spring, Midland, Odessa (split from 915, eff 4/5/2003)
434VA-5 E Virginia: Charlottesville, Lynchburg, Danville, South Boston, and Emporia (split from 804, eff 6/1/01; see also 757)
435UT-7 Rural Utah outside Salt Lake City metro (see split 801)
438QC-5 Canada: SW Quebec: Montreal city (overlaid on 514, [delayed until 2005] eff 10/10/03, mand 2/7/04)
440OH-5 Ohio: Cleveland metro area, excluding Cleveland (split from 216, see also 330)
441---4 Bermuda (part of what used to be 809)
442CA-8 Far north suburbs of San Diego (Oceanside, Escondido, SUSPENDED -- originally perm 10/21/00, mand 04/14/01)
443MD-5 E Maryland: Baltimore, Annapolis, Chesapeake Bay area, Ocean City (overlaid on 410)
445PA-5 SE Pennsylvania: Philadelphia (overlaid on 215, eff 5/1/01; see also 267)
450QC-5/-4 Canada: Southeastern Quebec; suburbs outside metro Montreal
456---- Inbound International
464IL-6 Illinois: south suburbs of Chicago (see 630; overlaid on 708)
469TX-6 Texas: Dallas Metro (overlays 214/972)
470GA-5 Georgia: Greater Atlanta Metropolitan Area (overlaid on 404/770/678; mand 9/2/01)
473---4 Grenada ("new" -- split from 809)
475CT-5 Connecticut: New Haven, Greenwich, southwestern (postponed; was perm 01/06/01; mand 03/01/01???)
478GA-5 Central Georgia: Macon (split from 912; see also 229; perm 08/01/00; mand 08/01/01)
479AR-6 NW Arkansas: Fayetteville, Springdale, Bentonville (split from 501, perm 01/19/02, mand 07/20/02)
480AZ-7 Arizona: East Phoenix (see 520; also Phoenix split 602, 623)
484PA-5 SE Pennsylvania: Allentown, Bethlehem, Reading, West Chester, Norristown (see 610)
500---- Personal Communication Service
501AR-6 Central Arkansas: Little Rock, Hot Srpings, Conway (see split 479)
502KY-5 N Central Kentucky: Louisville (see 270)
503OR-8 Oregon (see 541, 971)
504LA-6 E Louisiana: New Orleans metro area (see split 985)
505NM-7 New Mexico
506NB-4 Canada: New Brunswick
507MN-6 S Minnesota: Rochester
508MA-5 Cent. Massachusetts: Framingham; Cape Cod (see split 978, overlay 774)
509WA-8 E Washington state: Spokane
510CA-8 California: Oakland, East Bay (see 925)
511---- Nationwide travel information
512TX-6 S Texas: Austin (see split 361; overlay 737, perm 11/10/01)
513OH-5 SW Ohio: Cincinnati (see split 937; overlay 283 cancelled)
514QC-5 Canada: SW Quebec: Montreal city (see overlay 438, eff 10/10/03, mand 2/7/04)
515IA-6 Cent. Iowa: Des Moines (see split 641)
516NY-5 New York: Nassau County, Long Island; Hempstead (see split 631)
517MI-5 Cent. Michigan: Lansing (see split 989)
518NY-5 NE New York: Albany
519ON-5 Canada: SW Ontario: Windsor
520AZ-8 SE Arizona: Flagstaff, Tucson area (split from 602; see split 928)
530CA-8 NE California: Eldorado County, excluding Eldorado Hills: Auburn, Chico, Redding, So. Lake Tahoe, Marysville, Nevada City/Grass Valley (split from 916)
540VA-5 Northern Virginia: Shenandoah and Roanoke valleys: Fredericksburg, Harrisonburg, Roanoke, Salem, Lexington and nearby areas (see split 276; split from 703)
541OR-8 Oregon: Eugene, Medford (split from 503; 503 retains NW part [Portland/Salem], all else moves to 541)
546MI-5 E Michigan: Flint, Pontiac (overlaid on 810, perm 9/22/01; see also 248)
551NJ-5 N New Jersey: Jersey City, Hackensack (overlaid on 201)
555--? Reserved for directory assistance applications
557MO-6 SE Missouri: St Louis metro area only (cancelled: overlaid on 314)
559CA-8 Central California: Fresno (split from 209)
561FL-5 S. Central Florida: Palm Beach County (West Palm Beach, Boca Raton, Vero Beach; see split 772, eff 2/11/02; mand 11/11/02)
562CA-8 California: Long Beach (split from 310 Los Angeles)
563IA-6 E Iowa: Davenport, Dubuque (split from 319, eff 3/25/01)
564WA-8 W Washington State: Olympia, Bellingham (overlaid on 360; perm 02/03/01; mand postponed? see also 206, 253, 425)
567OH-5 NW Ohio: Toledo (overlaid on 419, perm 1/1/02)
570PA-5 NE and N Central Pennsylvania: Wilkes-Barre, Scranton (see 717)
571VA-5 Northern Virginia: Arlington, McLean, Tysons Corner (to be overlaid on 703 3/1/2000; see earlier split 540)
573MO-6 SE Missouri: excluding St Louis metro area, includes Central/East Missouri, area between St. Louis and Kansas City
574IN-5 N Indiana (split from 219)
580OK-6 W Oklahoma (rural areas outside Oklahoma City; split from 405)
585NY-5 NW New York: Rochester (split from 716)
586MI-5 Michigan: Macomb County (split from 810; perm 9/22/01, mand 3/23/02)
590---4 French West Indies Carribean Islands: St. Barthelemy (French), St. martin (Dutch & French) (time zones?)
600---- Canadian Services
601MS-6 Mississippi: Meridian, Jackson area (see splits 228, 662)
602AZ-8 Arizona: Phoenix (see 520; also Phoenix split 480, 623)
603NH-5 New Hampshire
604BC-8 Canada: British Columbia: Greater Vancouver (overlay 778, perm 11/3/01; see 250)
605SD-6/-7 South Dakota
606KY-5/-6 E Kentucky: area east of Frankfort: Ashland (see 859)
607NY-5 S Cent. New York: Ithaca, Binghamton; Catskills
608WI-6 SW Wisconsin: Madison
609NJ-5 S New Jersey: Trenton (see 856)
610PA-5 SE Pennsylvania: Allentown, Bethlehem, Reading, West Chester, Norristown (see overlays 484, 835)
611---- Reserved for special applications
612MN-6 Cent. Minnesota: Minneapolis (split from St. Paul, see 651; see splits 763, 952)
613ON-5 Canada: SE Ontario: Ottawa
614OH-5 SE Ohio: Columbus
615TN-6 E Tennessee: Nashville metro area (see 423, 931)
616MI-5 W Michigan: Holland, Grand Haven, Greenville, Grand Rapids, Ionia (see split 269)
617MA-5 Massachusetts: greater Boston (see overlay 857)
618IL-6 S Illinois: Centralia
619CA-8 S California: San Diego (see split 760; overlay 858, 935)
620KS-6 S Kansas: Wichita (split from 316; perm 2/3/01)
623AZ-7 Arizona: West Phoenix (see 520; also Phoenix split 480, 602)
626CA-8 E S California: Pasadena (split from 818 Los Angeles)
627CA-8 Napa, Sonoma counties (perm 10/13/01, mand 04/13/02)
628CA-8 (Region unknown; perm 10/21/00)
630IL-6 W NE Illinois, western suburbs of Chicago (part of what used to be 708; overlay 331)
631NY-5 New York: Suffolk County, Long Island; Huntington, Riverhead (split 516)
636MO-6 Missouri: W St. Louis metro area of St. Louis county, St. Charles County, Jefferson County area south (between 314 and 573)
641IA-6 Iowa: Mason City, Marshalltown, Creston, Ottumwa (split from 515; perm 07/09/00)
646NY-5 New York (overlay 212/917) NYC: Manhattan only
647ON-5 Canada: S Cent. Ontario: Toronto (overlaid on 416; eff 3/5/01)
649---5 Turks & Caicos Islands
650CA-8 California: Peninsula south of San Francisco -- San Mateo County, parts of Santa Clara County (split from 415)
651MN-6 Cent. Minnesota: St. Paul (split from Minneapolis, see 612)
657CA-8 California: North and Central Orange County (overlaid on 714; perm 10/7/00)
660MO-6 N Missouri (split from 816)
661CA-8 California: N Los Angeles, Mckittrick, Mojave, Newhall, Oildale, Palmdal, Taft, Tehachapi, Bakersfield, Earlimart, Lancaster (split from 805)
662MS-6 N Mississippi: Tupelo, Grenada (split from 601)
664---4 Montserrat (split from 809)
669CA-8 Cent. Coastal California: San Jose (rejected was: overlaid on 408)
670MP+10 Commonwealth of the Northern Mariana Islands (CNMI, US Commonwealth)
671GU+10 Guam
678GA-5 N Georgia: metropolitan Atlanta (overlay; see 404, 770)
679MI-5/-6 (Region unknown; perm 2/3/01)
682TX-6 Texas: Fort Worth areas (perm 10/7/00, mand 12/9/00)
684---11 American Samoa
689FL-5 Central Florida: Metro Orlando (see overlay 321; overlaid on 407, eff 7/02)
700---- Interexchange Carrier Services
701ND-6 North Dakota
702NV-8 Nevada: Clark County, incl Las Vegas (see 775)
703VA-5 Northern Virginia: Arlington, McLean, Tysons Corner (see split 540; overlay 571)
704NC-5 W North Carolina: Charlotte (see split 828, overlay 980)
705ON-5 Canada: NW Ontario: Sault Ste. Marie/N Ontario: N Bay, Sudbury
706GA-5 N Georgia: Columbus, Augusta
707CA-8 NW California: Santa Rosa, Napa, Vallejo, American Canyon, Fairfield
708IL-6 Illinois: south suburbs of Chicago (see 630; overlay 464)
709NF-4/-3.5 Canada: Newfoundland
710--? US Government
711---- Telecommunications Relay Services
712IA-6 W Iowa: Council Bluffs
713TX-6 Mid SE Texas: central Houston (split, 281; overlay 832)
714CA-8 North and Central Orange County (see split 949; overlay 657)
715WI-6 N Wisconsin: Eau Claire, Wausau, Superior
716NY-5 NW New York: Buffalo (see split 585)
717PA-5 E Pennsylvania: Harrisburg (see split 570)
718NY-5 New York City Metro Area, New York (Queens, Staten Island, The Bronx, and Brooklyn; see 212, 347)
719CO-7 SE Colorado: Pueblo, Colorado Springs
720CO-7 Central Colorado: Denver (overlaid on 303)
724PA-5 SW Pennsylvania (areas outside metro Pittsburgh; split from 412)
727FL-5 Florida Tampa Metro: Saint Petersburg, Clearwater (Pinellas and parts of Pasco County; split from 813)
731TN-6 W Tennessee: outside Memphis metro area (split from 901, perm 2/12/01, mand 9/17/01)
732NJ-5 Cent. New Jersey: Toms River, New Brunswick, Bound Brook (see overlay 848)
734MI-5 SE Michigan: west and south of Detroit -- Ann Arbor, Monroe (split from 313)
737TX-6 S Texas: Austin (overlaid on 512, suspended; see also 361)
740OH-5 SE Ohio (rural areas outside Columbus; split from 614)
747CA-8 S California: Los Angeles, Agoura Hills, Calabasas, Hidden Hills, and Westlake Village (see 818; implementation suspended)
752CA-8 California: W San Bernardino County and E Los Angeles County: Ontario, Pomona, Chino, San Bernardino (overlaid on northern 909; perm 2/10/01)
754FL-5 Florida: Broward County area, incl Ft. Lauderdale (overlaid on 954; perm 8/1/01, mand 9/1/01)
757VA-5 E Virginia: Tidewater / Hampton Roads area -- Norfolk, Virginia Beach, Chesapeake, Portsmouth, Hampton, Newport News, Suffolk (part of what used to be 804)
758---4 St. Lucia (split from 809)
760CA-8 California: San Diego North County to Sierra Nevada (split from 619)
763MN-6 Minnesota: Minneapolis metro area (split from 612; see also 952)
764CA-8 (overlay on 650; SUSPENDED)
765IN-5 Indiana: outside Indianapolis (split from 317)
767---4 Dominica (split from 809)
770GA-5 Georgia: Atlanta suburbs: outside of I-285 ring road (part of what used to be 404; see also overlay 678)
772FL-5 S. Central Florida: St. Lucie, Martin, and Indian River counties (split from 561; eff 2/11/02; mand 11/11/02)
773IL-6 Illinois: city of Chicago, outside the loop (see 312; overlay 872)
774MA-5 Cent. Massachusetts: Framingham; Cape Cod (see split 978, overlaid on 508, eff 4/2/2001)
775NV-8 Nevada: Reno (all of NV except Clark County area; see 702)
778BC-8 Canada: British Columbia: Greater Vancouver (overlaid on 604, per 11/3/01; see also 250)
780AB-7 Canada: Northern Alberta, north of Lacombe (see 403)
781MA-5 Massachusetts: Boston surburbs, to the north and west (see splits 617, 508; overlay 339)
784---4 St. Vincent & Grenadines (split from 809)
785KS-6 N & W Kansas: Topeka (split from 913)
786FL-5 SE Florida, Monroe County (Miami; overlaid on 305)
787PR-4 Puerto Rico (see overlay 939, perm 8/1/01)
800--? US/Canada toll free (see 888, 877, 866, 855, 844, 833, 822)
801UT-7 Utah: Salt Lake City Metro (see split 385, eff 3/30/02; see also split 435)
802VT-5 Vermont
803SC-5 South Carolina: Columbia, Aiken, Sumter (see 843, 864)
804VA-5 E Virginia: Richmond (see splits 757, 434)
805CA-8 S Cent. and Cent. Coastal California: Ventura County, Santa Barbara County: San Luis Obispo, Thousand Oaks, Carpinteria, Santa Barbara, Santa Maria, Lompoc, Santa Ynez Valley / Solvang (see 661 split)
806TX-6 Panhandle Texas: Amarillo, Lubbock
807ON-5/-6 Canada: W Ontario: Thunder Bay
808HI-10 Hawaii
809---4 Dominican Republic (see splits 264, 268, 284, 340, 441, 473, 664, 758, 767, 784, 868, 876)
810MI-5 E Michigan: Flint, Pontiac (see 248; overlay 546, split 586)
811---- Reserved for special applications
812IN-6 S Indiana: Evansville
813FL-5 SW Florida: Tampa Metro (splits 727 St. Petersburg, Clearwater, and 941 Sarasota)
814PA-5 Cent. Pennsylvania: Erie
815IL-6 NW Illinois: Rockford, Kankakee
816MO-6 N Missouri: Kansas City (see split 660, overlay 975)
817TX-6 N Cent. Texas: Fort Worth area (see 254, 940)
818CA-8 S California: Los Angeles: San Fernando Valley (see 213, 310, 562, 626, 747)
819QC-5 NW Quebec: Trois Rivieres (see 867)
822--? US/Canada toll free (proposed, may not be in use yet)
828NC-5 W North Carolina: Asheville (split from 704)
830TX-6 Texas: N and W of San Antonio (split from 210)
831CA-8 California: central coast area from Santa Cruz through Monterey County
832TX-6 Texas: Houston (overlay 713/281)
833--? US/Canada toll free (proposed, may not be in use yet)
835PA-5 SE Pennsylvania: Allentown, Bethlehem, Reading, West Chester, Norristown (overlaid on 610, eff 5/1/01; see also 484)
836FL-5 Florida (region unknown)
843SC-5 South Carolina, coastal area: Charleston, Beaufort, Myrtle Beach (split from 803)
844--? US/Canada toll free (proposed, may not be in use yet)
845NY-5 New York: Poughkeepsie; Nyack, Nanuet, Valley Cottage, New City, Putnam, Dutchess, Rockland, Orange, Ulster and parts of Sullivan counties in New York's lower Hudson Valley and Delaware County in the Catskills (see 914; perm 6/5/2000)
847IL-6 Northern NE Illinois: northwestern suburbs of chicago (Evanston, Waukegan, Northbrook; see overlay 224)
848NJ-5 Cent. New Jersey: Toms River, New Brunswick, Bound Brook (see overlay 732)
850FL-6 Florida panhandle, from east of Tallahassee to Pensacola (split from 904)
855--? US/Canada toll free (proposed, may not be in use yet)
856NJ-5 SW New Jersey: greater Camden area, Mt Laurel (split from 609)
857MA-5 Massachusetts: greater Boston (overlaid on 617, eff 4/2/2001)
858CA-8 S California: San Diego (see split 760; overlay 619, 935)
859KY-5 N and Central Kentucky: Lexington; suburban KY counties of Cincinnati OH metro area; Covington, Newport, Ft. Thomas, Ft. Wright, Florence (split from 606)
860CT-5 Connecticut: areas outside of Fairfield and New Haven Counties (split from 203, overlay 959)
861FL-5 SW Florida: Sarasota (?) (see 863, 941)
862NJ-5 N New Jersey: Newark Paterson Morristown (overlaid on 973)
863FL-5 Florida: Polk County (split from 941)
864SC-5 South Carolina, upstate area: Greenville, Spartanburg (split from 803)
865TN-5 E Tennessee: Knoxville, Knox and adjacent counties (split from 423; part of what used to be 615)
866--? US/Canada toll free
867YT-8/-9 Canada: Yukon, Northwest Territories, Nunavut (split from 403/819)
868---4 Trinidad and Tobago ("new" -- see 809)
869---4 St. Kitts & Nevis
870AR-6 Arkansas: areas outside of west/central AR: Jonesboro, etc
872IL-6 Illinois: Chicago (downtown only -- in the loop; see 773; overlaid on 312 and 773)
876---5 Jamaica (split from 809)
877--? US/Canada toll free
878PA-5 Pittsburgh, New Castle (overlaid on 412, perm 8/17/01, mand t.b.a.)
880---- Paid Toll-Free Service
881---- Paid Toll-Free Service
882---- Paid Toll-Free Service
888--? US/Canada toll free
900--? US toll calls -- prices vary with the number called
901TN-6 W Tennessee: Memphis metro area (see 615, 931, split 731)
902NS-4 Canada: Nova Scotia, Prince Edward Island
903TX-6 NE Texas: Tyler (see overlay 430, eff 7/20/02)
904FL-5 N Florida: Jacksonville (see splits 352, 386, 850)
905ON-5 Canada: S Cent. Ontario: Greater Toronto Area -- Durham, Halton, Hamilton-Wentworth, Niagara, Peel, York, and southern Simcoe County (excluding Toronto -- see overlay 289 [eff 6/9/01], splits 416, 647)
906MI-5 Upper Peninsula Michigan: Sault Ste. Marie, Escanaba, Marquette
907AK-9 Alaska
908NJ-5 Cent. New Jersey: Elizabeth, Basking Ridge, Somerville, Bridgewater
909CA-8 California: Inland empire: San Bernardino (see overlay 752, split 951), Riverside
910NC-5 S Cent. North Carolina: Fayetteville, Wilmington (see 336)
911---- Emergency
912GA-5 SE Georgia: Savannah (see splits 229, 478)
913KS-6 Kansas: Kansas City area (see 785)
914NY-5 S New York: Westchester County (see 845)
915TX-7/-6 W Texas: El Paso (see splits 325 eff 4/5/03; 432, eff 4/5/2003)
916CA-8 NE California: Sacramento, Walnut Grove, Lincoln, Newcastle and El Dorado Hills (split to 530)
917NY-5 New York: New York City (cellular, see 646)
918OK-6 E Oklahoma: Tulsa
919NC-5 E North Carolina: Raleigh (see split 252, overlay 984)
920WI-6 NE Wisconsin: Appleton, Green Bay, Sheboygan, Fond du Lac (from Beaver Dam NE to Oshkosh, Appleton, and Door County; part of what used to be 414)
925CA-8 California: Contra Costa area: Antioch, Concord, Pleasanton, Walnut Creek (split from 510)
928AZ-7 Central and Northern Arizona: Prescott, Flagstaff, Yuma (split from 520)
931TN-6 Central Tennessee: semi-circular ring around Nashville (split from 615)
935CA-8 S California: San Diego (see split 760; overlay 858, 619; on hold)
936TX-6 SE Texas: Conroe, Lufkin, Nacogdoches, Crockett (split from 409, see also 979)
937OH-5 SW Ohio: Dayton (part of what used to be 513)
939PR-4 Puerto Rico (overlaid on 787, perm 8/1/01)
940TX-6 N Cent. Texas: Denton, Wichita Falls (split from 254, 817)
941FL-5 SW Florida: Sarasota and Manatee counties (part of what used to be 813; see split 863)
947MI-5/-6 Michigan: Oakland County (overlays 248, perm 5/5/01)
949CA-8 California: S Coastal Orange County (split from 714)
951CA-8 California: W Riverside County (split from 909; eff 2/12/00)
952MN-6 Minnesota: Minneapolis metro area, Bloomington (split from 612; see also 763)
954FL-5 Florida: Broward County area, incl Ft. Lauderdale (part of what used to be 305, see overlay 754)
956TX-6 Texas: Valley of Texas area; Harlingen, Laredo (split from 210)
957NM-7 New Mexico (pending; region unknown)
959CT-5 Connecticut: Hartford, New London (postponed; was overlaid on 860 perm 1/6/01; mand 3/1/01???)
969MD-5 Maryland: Severn area (eff ???)
970CO-7 N and W Colorado (part of what used to be 303)
971OR-8 Oregon: Metropolitan Portland, Salem/Keizer area, incl Cricket Wireless (see 503; perm 10/1/00)
972TX-6 Texas: Dallas Metro (overlays 214/469)
973NJ-5 N New Jersey: Newark Paterson Morristown (see overlay 862; split from 201)
975MO-6 N Missouri: Kansas City (overlaid on 816)
976---- Pay services
978MA-5 Massachusetts: north of Boston to NH (see split 978 -- this is the northern half of old 508; see overlay 351)
979TX-6 SE Texas: Galveston, Port Arthur, Bryan, College Station (split from 409, see also 936)
980NC-5 North Carolina: (overlay on 704; perm 5/1/00, mand 3-15-01)
984NC-5 E North Carolina: Raleigh (overlaid on 919, perm 8/1/01, mand 2/5/02 POSTPONED)
985LA-6 E Louisiana: SE/N shore of Lake Pontchartrain: Hammond, Slidell, Covington, Amite, Kentwood, area SW of New Orleans, Houma, Thibodaux, Morgan City (split from 504; perm 02/12/2001; mand 10/22/01)
989MI-5 Upper central Michigan: Mt Pleasant, Saginaw (split from 517; perm 4/7/01)
999---- Often used by carriers to indicate that the area code information is unavailable for CNID, even though the rest of the number is present
See NIST's Boulder labs' explanation of GMT versus UTC.

This document is at http://www.cs.ucsd.edu/~bsy/area.html; check there for updates. If you have any corrections, please first verify that the correction is not already present (e.g., if you are working from a printed copy), and then send email to

Last updated Monday August 18th, 2003.