For CMS Software Support's Professional Version (V7, V8, V9, V10, V11, V12 & V2009)

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 are also several other listings on the web.
 

Area Code	Region	Timezone Offset (from UTC)	Description
52 55	MX	-6	Mexico: Mexico City area (country code + city code)
201	NJ	-5	N New Jersey: Jersey City, Hackensack (see split 973, overlay 551)
202	DC	-5	Washington, D.C.
203	CT	-5	Connecticut: Fairfield County and New Haven County; Bridgeport, New Haven (see 860)
204	MB	-6	Canada: Manitoba
205	AL	-6	Central Alabama (including Birmingham; excludes the southeastern corner of Alabama and the deep south; see splits 256 and 334)
206	WA	-8	W Washington state: Seattle and Bainbridge Island (see splits 253, 360, 425; overlay 564)
207	ME	-5	Maine
208	ID	-7/-8	Idaho
209	CA	-8	Cent. California: Stockton (see split 559)
210	TX	-6	S Texas: San Antonio (see also splits 830, 956)
211	--	--	Local community info / referral services
212	NY	-5	New York City, New York (Manhattan; see 646, 718)
213	CA	-8	S California: Los Angeles (see 310, 323, 626, 818)
214	TX	-6	Texas: Dallas Metro (overlays 469/972)
215	PA	-5	SE Pennsylvania: Philadelphia (see overlays 267)
216	OH	-5	Cleveland (see splits 330, 440)
217	IL	-6	Cent. Illinois: Springfield
218	MN	-6	N Minnesota: Duluth
219	IN	-6/-5	NW Indiana: Gary (see split 574, 260)
224	IL	-6	Northern NE Illinois: Evanston, Waukegan, Northbrook (overlay on 847, eff 1/5/02)
225	LA	-6	Louisiana: Baton Rouge, New Roads, Donaldsonville, Albany, Gonzales, Greensburg, Plaquemine, Vacherie (split from 504)
226	ON	-5	Canada: SW Ontario: Windsor (overlaid on 519; eff 6/06)
228	MS	-6	S Mississippi (coastal areas, Biloxi, Gulfport; split from 601)
229	GA	-5	SW Georgia: Albany (split from 912; see also 478; perm 8/1/00)
231	MI	-5	W Michigan: Northwestern portion of lower Peninsula; Traverse City, Muskegon, Cheboygan, Alanson
234	OH	-5	NE Ohio: Canton, Akron (overlaid on 330; perm 10/30/00)
236	VA	-5	Virginia (region unknown) / Unassigned?
239	FL	-5	Florida (Lee, Collier, and Monroe Counties, excl the Keys; see 305; eff 3/11/02; mand 3/11/03)
240	MD	-5	W Maryland: Silver Spring, Frederick, Gaithersburg (overlay, see 301)
242	--	-5	Bahamas
246	--	-4	Barbados
248	MI	-5	Michigan: Oakland County, Pontiac (split from 810; see overlay 947)
250	BC	-8/-7	Canada: British Columbia (see 604)
251	AL	-6	S Alabama: Mobile and coastal areas, Jackson, Evergreen, Monroeville (split from 334, eff 6/18/01; see also 205, 256)
252	NC	-5	E North Carolina (Rocky Mount; split from 919)
253	WA	-8	Washington: South Tier - Tacoma, Federal Way (split from 206, see also 425; overlay 564)
254	TX	-6	Central Texas (Waco, Stephenville; split, see 817, 940)
256	AL	-6	E and N Alabama (Huntsville, Florence, Gadsden; split from 205; see also 334)
260	IN	-5	NE Indiana: Fort Wayne (see 219)
262	WI	-6	SE Wisconsin: counties of Kenosha, Ozaukee, Racine, Walworth, Washington, Waukesha (split from 414)
264	--	-4	Anguilla (split from 809)
267	PA	-5	SE Pennsylvania: Philadelphia (see 215)
268	--	-4	Antigua and Barbuda (split from 809)
269	MI	-5	SW Michigan: Kalamazoo, Saugatuck, Hastings, Battle Creek, Sturgis to Lake Michigan (split from 616)
270	KY	-6	W Kentucky: Bowling Green, Paducah (split from 502)
276	VA	-5	S and SW Virginia: Bristol, Stuart, Martinsville (split from 540; perm 9/1/01, mand 3/16/02)
278	MI	-5	Michigan (overlaid on 734, SUSPENDED)
281	TX	-6	Texas: Houston Metro (split 713; overlay 832)
283	OH	-5	SW Ohio: Cincinnati (cancelled: overlaid on 513)
284	--	-4	British Virgin Islands (split from 809)
289	ON	-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)
301	MD	-5	W Maryland: Silver Spring, Frederick, Camp Springs, Prince George's County (see 240)
302	DE	-5	Delaware
303	CO	-7	Central Colorado: Denver (see 970, also 720 overlay)
304	WV	-5	West Virginia
305	FL	-5	SE Florida: Miami, the Keys (see 786, 954; 239)
306	SK	-6/-7*	Canada: Saskatchewan
307	WY	-7	Wyoming
308	NE	-6/-7	W Nebraska: North Platte
309	IL	-6	W Cent. Illinois: Peoria
310	CA	-8	S California: Beverly Hills, West Hollywood, West Los Angeles (see split 562; overlay 424)
311	--	--	Reserved for special applications
312	IL	-6	Illinois: Chicago (downtown only -- in the loop; see 773; overlay 872)
313	MI	-5	Michigan: Detroit and suburbs (see 734, overlay 679)
314	MO	-6	SE Missouri: St Louis city and parts of the metro area only (see 573, 636, overlay 557)
315	NY	-5	N Cent. New York: Syracuse
316	KS	-6	S Kansas: Wichita (see split 620)
317	IN	-5	Cent. Indiana: Indianapolis (see 765)
318	LA	-6	N Louisiana: Shreveport, Ruston, Monroe, Alexandria (see split 337)
319	IA	-6	E Iowa: Cedar Rapids (see split 563)
320	MN	-6	Cent. Minnesota: Saint Cloud (rural Minn, excl St. Paul/Minneapolis)
321	FL	-5	Florida: Brevard County, Cape Canaveral area; Metro Orlando (split from 407)
323	CA	-8	S California: Los Angeles (outside downtown: Hollywood; split from 213)
325	TX	-6	Central Texas: Abilene, Sweetwater, Snyder, San Angelo (split from 915)
330	OH	-5	NE Ohio: Akron, Canton, Youngstown; Mahoning County, parts of Trumbull/Warren counties (see splits 216, 440, overlay 234)
331	IL	-6	W NE Illinois, western suburbs of Chicago (part of what used to be 708; overlaid on 630; eff 7/07)
334	AL	-6	S Alabama: Auburn/Opelika, Montgomery and coastal areas (part of what used to be 205; see also 256, split 251)
336	NC	-5	Cent. North Carolina: Greensboro, Winston-Salem, High Point (split from 910)
337	LA	-6	SW Louisiana: Lake Charles, Lafayette (see split 318)
339	MA	-5	Massachusetts: Boston suburbs, to the south and west (see splits 617, 508; overlaid on 781, eff 5/2/01)
340	VI	-4*	US Virgin Islands (see also 809)
341	CA	-8	(overlay on 510; SUSPENDED)
345	--	-5	Cayman Islands
347	NY	-5	New York (overlay for 718: NYC area, except Manhattan)
351	MA	-5	Massachusetts: north of Boston to NH, 508, and 781 (overlaid on 978, eff 4/2/01)
352	FL	-5	Florida: Gainesville area, Ocala, Crystal River (split from 904)
360	WA	-8	W Washington State: Olympia, Bellingham (area circling 206, 253, and 425; split from 206; see overlay 564)
361	TX	-6	S Texas: Corpus Christi (split from 512; eff 2/13/99)
369	CA	-8	Solano County (perm 12/2/00, mand 6/2/01)
380	OH	-5	Ohio: Columbus (overlaid on 614; assigned but not in use)
385	UT	-7	Utah: Salt Lake City Metro (split from 801, eff 3/30/02 POSTPONED; see also 435)
386	FL	-5	N central Florida: Lake City (split from 904, perm 2/15/01, mand 11/5/01)
401	RI	-5	Rhode Island
402	NE	-6	E Nebraska: Omaha, Lincoln
403	AB	-7	Canada: Southern Alberta (see 780, 867)
404	GA	-5	N Georgia: Atlanta and suburbs (see overlay 678, split 770)
405	OK	-6	W Oklahoma: Oklahoma City (see 580)
406	MT	-7	Montana
407	FL	-5	Central Florida: Metro Orlando (see overlay 689, eff 7/02; split 321)
408	CA	-8	Cent. Coastal California: San Jose (see overlay 669)
409	TX	-6	SE Texas: Galveston, Port Arthur, Beaumont (splits 936, 979)
410	MD	-5	E Maryland: Baltimore, Annapolis, Chesapeake Bay area, Ocean City (see 443)
411	--	--	Reserved for special applications
412	PA	-5	W Pennsylvania: Pittsburgh (see split 724, overlay 878)
413	MA	-5	W Massachusetts: Springfield
414	WI	-6	SE Wisconsin: Milwaukee County (see splits 920, 262)
415	CA	-8	California: San Francisco County and Marin County on the north side of the Golden Gate Bridge, extending north to Sonoma County (see 650)
416	ON	-5	Canada: S Cent. Ontario: Toronto (see overlay 647, eff 3/5/01)
417	MO	-6	SW Missouri: Springfield
418	QC	-5/-4	Canada: NE Quebec: Quebec
419	OH	-5	NW Ohio: Toledo (see overlay 567, perm 1/1/02)
423	TN	-5	E Tennessee, except Knoxville metro area: Chattanooga, Bristol, Johnson City, Kingsport, Greeneville (see split 865; part of what used to be 615)
424	CA	-8	S California: Los Angeles (see split 562; overlaid on 310 mand 7/26/06)
425	WA	-8	Washington: North Tier - Everett, Bellevue (split from 206, see also 253; overlay 564)
430	TX	-6	NE Texas: Tyler (overlaid on 903, eff 7/20/02)
432	TX	-7/-6	W Texas: Big Spring, Midland, Odessa (split from 915, eff 4/5/03)
434	VA	-5	E Virginia: Charlottesville, Lynchburg, Danville, South Boston, and Emporia (split from 804, eff 6/1/01; see also 757)
435	UT	-7	Rural Utah outside Salt Lake City metro (see split 801)
438	QC	-5	Canada: SW Quebec: Montreal city (overlaid on 514, [delayed until 6/06] eff 10/10/03, mand 2/7/04)
440	OH	-5	Ohio: Cleveland metro area, excluding Cleveland (split from 216, see also 330)
441	--	-4	Bermuda (part of what used to be 809)
442	CA	-8	Far north suburbs of San Diego (Oceanside, Escondido, SUSPENDED -- originally perm 10/21/00, mand 4/14/01)
443	MD	-5	E Maryland: Baltimore, Annapolis, Chesapeake Bay area, Ocean City (overlaid on 410)
450	QC	-5/-4	Canada: Southeastern Quebec; suburbs outside metro Montreal
456	--	--	Inbound International
464	IL	-6	Illinois: south suburbs of Chicago (see 630; overlaid on 708)
469	TX	-6	Texas: Dallas Metro (overlays 214/972)
470	GA	-5	Georgia: Greater Atlanta Metropolitan Area (overlaid on 404/770/678; mand 9/2/01)
473	--	-4	Grenada ("new" -- split from 809)
475	CT	-5	Connecticut: New Haven, Greenwich, southwestern (postponed; was perm 1/6/01; mand 3/1/01???)
478	GA	-5	Central Georgia: Macon (split from 912; see also 229; perm 8/1/00; mand 8/1/01)
479	AR	-6	NW Arkansas: Fort Smith, Fayetteville, Springdale, Bentonville (SPLIt from 501, perm 1/19/02, mand 7/20/02)
480	AZ	-7*	Arizona: East Phoenix (see 520; also Phoenix split 602, 623)
484	PA	-5	SE Pennsylvania: Allentown, Bethlehem, Reading, West Chester, Norristown (see 610)
500	--	--	Personal Communication Service
501	AR	-6	Central Arkansas: Little Rock, Hot Springs, Conway (see split 479)
502	KY	-5	N Central Kentucky: Louisville (see 270)
503	OR	-8	Oregon (see 541, 971)
504	LA	-6	E Louisiana: New Orleans metro area (see splits 225, 985)
505	NM	-7	North central and northwestern New Mexico (Albuquerque, Santa Fe, Los Alamos; see split 575, eff 10/07/07)
506	NB	-4	Canada: New Brunswick
507	MN	-6	S Minnesota: Rochester, Mankato, Worthington
508	MA	-5	Cent. Massachusetts: Framingham; Cape Cod (see split 978, overlay 774)
509	WA	-8	E and Central Washington state: Spokane, Yakima, Walla Walla, Ellensburg
510	CA	-8	California: Oakland, East Bay (see 925)
511	--	--	Nationwide travel information
512	TX	-6	S Texas: Austin (see split 361; overlay 737, perm 11/10/01)
513	OH	-5	SW Ohio: Cincinnati (see split 937; overlay 283 cancelled)
514	QC	-5	Canada: SW Quebec: Montreal city (see overlay 438, eff 10/10/03, mand 2/7/04)
515	IA	-6	Cent. Iowa: Des Moines (see split 641)
516	NY	-5	New York: Nassau County, Long Island; Hempstead (see split 631)
517	MI	-5	Cent. Michigan: Lansing (see split 989)
518	NY	-5	NE New York: Albany
519	ON	-5	Canada: SW Ontario: Windsor (see overlay 226)
520	AZ	-7*	SE Arizona: Tucson area (split from 602; see split 928)
530	CA	-8	NE California: Eldorado County area, excluding Eldorado Hills itself: incl cities of Auburn, Chico, Redding, So. Lake Tahoe, Marysville, Nevada City/Grass Valley (split from 916)
540	VA	-5	Western and Southwest Virginia: Shenandoah and Roanoke valleys: Fredericksburg, Harrisonburg, Roanoke, Salem, Lexington and nearby areas (see split 276; split from 703)
541	OR	-8/-7	Oregon: Eugene, Medford (split from 503; 503 retains NW part [Portland/Salem], all else moves to 541; eastern oregon is UTC-7)
551	NJ	-5	N New Jersey: Jersey City, Hackensack (overlaid on 201)
555	--	?	Reserved for directory assistance applications
557	MO	-6	SE Missouri: St Louis metro area only (cancelled: overlaid on 314)
559	CA	-8	Central California: Fresno (split from 209)
561	FL	-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)
562	CA	-8	California: Long Beach (split from 310 Los Angeles)
563	IA	-6	E Iowa: Davenport, Dubuque (split from 319, eff 3/25/01)
564	WA	-8	W Washington State: Olympia, Bellingham (overlaid on 360; see also 206, 253, 425; assigned but not in use)
567	OH	-5	NW Ohio: Toledo (overlaid on 419, perm 1/1/02)
570	PA	-5	NE and N Central Pennsylvania: Wilkes-Barre, Scranton (see 717)
571	VA	-5	Northern Virginia: Arlington, McLean, Tysons Corner (to be overlaid on 703 3/1/00; see earlier split 540)
573	MO	-6	SE Missouri: excluding St Louis metro area, includes Central/East Missouri, area between St. Louis and Kansas City
574	IN	-5	N Indiana: Elkhart, South Bend (split from 219)
575	NM	-7	New Mexico (Las Cruces, Alamogordo, Roswell; split from 505, eff 10/07/07)
580	OK	-6	W Oklahoma (rural areas outside Oklahoma City; split from 405)
585	NY	-5	NW New York: Rochester (split from 716)
586	MI	-5	Michigan: Macomb County (split from 810; perm 9/22/01, mand 3/23/02)
600	--	--	Canadian Services
601	MS	-6	Mississippi: Meridian, Jackson area (see splits 228, 662; overlay 769)
602	AZ	-7*	Arizona: Phoenix (see 520; also Phoenix split 480, 623)
603	NH	-5	New Hampshire
604	BC	-8	Canada: British Columbia: Greater Vancouver (overlay 778, perm 11/3/01; see 250)
605	SD	-6/-7	South Dakota
606	KY	-5/-6	E Kentucky: area east of Frankfort: Ashland (see 859)
607	NY	-5	S Cent. New York: Ithaca, Binghamton; Catskills
608	WI	-6	SW Wisconsin: Madison
609	NJ	-5	S New Jersey: Trenton (see 856)
610	PA	-5	SE Pennsylvania: Allentown, Bethlehem, Reading, West Chester, Norristown (see overlays 484, 835)
611	--	--	Reserved for special applications
612	MN	-6	Cent. Minnesota: Minneapolis (split from St. Paul, see 651; see splits 763, 952)
613	ON	-5	Canada: SE Ontario: Ottawa
614	OH	-5	SE Ohio: Columbus (see overlay 380)
615	TN	-6	Northern Middle Tennessee: Nashville metro area (see 423, 931)
616	MI	-5	W Michigan: Holland, Grand Haven, Greenville, Grand Rapids, Ionia (see split 269)
617	MA	-5	Massachusetts: greater Boston (see overlay 857)
618	IL	-6	S Illinois: Centralia
619	CA	-8	S California: San Diego (see split 760; overlay 858, 935)
620	KS	-6	S Kansas: Wichita (split from 316; perm 2/3/01)
623	AZ	-7*	Arizona: West Phoenix (see 520; also Phoenix split 480, 602)
626	CA	-8	E S California: Pasadena (split from 818 Los Angeles)
627	CA	-8	No longer in use [was Napa, Sonoma counties (perm 10/13/01, mand 4/13/02); now 707]
628	CA	-8	(Region unknown; perm 10/21/00)
630	IL	-6	W NE Illinois, western suburbs of Chicago (part of what used to be 708; overlay 331)
631	NY	-5	New York: Suffolk County, Long Island; Huntington, Riverhead (split 516)
636	MO	-6	Missouri: W St. Louis metro area of St. Louis county, St. Charles County, Jefferson County area south (between 314 and 573)
641	IA	-6	Iowa: Mason City, Marshalltown, Creston, Ottumwa (split from 515; perm 7/9/00)
646	NY	-5	New York (overlay 212/917) NYC: Manhattan only
647	ON	-5	Canada: S Cent. Ontario: Toronto (overlaid on 416; eff 3/5/01)
649	--	-5	Turks & Caicos Islands
650	CA	-8	California: Peninsula south of San Francisco -- San Mateo County, parts of Santa Clara County (split from 415)
651	MN	-6	Cent. Minnesota: St. Paul (split from Minneapolis, see 612)
660	MO	-6	N Missouri (split from 816)
661	CA	-8	California: N Los Angeles, Mckittrick, Mojave, Newhall, Oildale, Palmdale, Taft, Tehachapi, Bakersfield, Earlimart, Lancaster (split from 805)
662	MS	-6	N Mississippi: Tupelo, Grenada (split from 601)
664	--	-4	Montserrat (split from 809)
669	CA	-8	Cent. Coastal California: San Jose (rejected was: overlaid on 408)
670	MP	+10*	Commonwealth of the Northern Mariana Islands (CNMI, US Commonwealth)
671	GU	+10*	Guam
678	GA	-5	N Georgia: metropolitan Atlanta (overlay; see 404, 770)
679	MI	-5/-6	Michigan: Dearborn area (overlaid on 313; assigned but not in use)
682	TX	-6	Texas: Fort Worth areas (perm 10/7/00, mand 12/9/00)
684	--	-11	American Samoa
689	FL	-5	Central Florida: Metro Orlando (see overlay 321; overlaid on 407, assigned but not in use)
700	--	--	Interexchange Carrier Services
701	ND	-6	North Dakota
702	NV	-8	S. Nevada: Clark County, incl Las Vegas (see 775)
703	VA	-5	Northern Virginia: Arlington, McLean, Tysons Corner (see split 540; overlay 571)
704	NC	-5	W North Carolina: Charlotte (see split 828, overlay 980)
705	ON	-5	Canada: NE Ontario: Sault Ste. Marie/N Ontario: N Bay, Sudbury
706	GA	-5	N Georgia: Columbus, Augusta (see overlay 762)
707	CA	-8	NW California: Santa Rosa, Napa, Vallejo, American Canyon, Fairfield
708	IL	-6	Illinois: southern and western suburbs of Chicago (see 630; overlay 464)
709	NL	-4/-3.5	Canada: Newfoundland and Labrador
710	--	?	US Government
711	--	--	Telecommunications Relay Services
712	IA	-6	W Iowa: Council Bluffs
713	TX	-6	Mid SE Texas: central Houston (split, 281; overlay 832)
714	CA	-8	North and Central Orange County (see split 949)
715	WI	-6	N Wisconsin: Eau Claire, Wausau, Superior
716	NY	-5	NW New York: Buffalo (see split 585)
717	PA	-5	E Pennsylvania: Harrisburg (see split 570)
718	NY	-5	New York City, New York (Queens, Staten Island, The Bronx, and Brooklyn; see 212, 347)
719	CO	-7	SE Colorado: Pueblo, Colorado Springs
720	CO	-7	Central Colorado: Denver (overlaid on 303)
724	PA	-5	SW Pennsylvania (areas outside metro Pittsburgh; split from 412)
727	FL	-5	Florida Tampa Metro: Saint Petersburg, Clearwater (Pinellas and parts of Pasco County; split from 813)
731	TN	-6	W Tennessee: outside Memphis metro area (split from 901, perm 2/12/01, mand 9/17/01)
732	NJ	-5	Cent. New Jersey: Toms River, New Brunswick, Bound Brook (see overlay 848)
734	MI	-5	SE Michigan: west and south of Detroit -- Ann Arbor, Monroe (split from 313)
737	TX	-6	S Texas: Austin (overlaid on 512, suspended; see also 361)
740	OH	-5	SE Ohio (rural areas outside Columbus; split from 614)
747	CA	-8	S California: Los Angeles, Agoura Hills, Calabasas, Hidden Hills, and Westlake Village (see 818; implementation suspended)
754	FL	-5	Florida: Broward County area, incl Ft. Lauderdale (overlaid on 954; perm 8/1/01, mand 9/1/01)
757	VA	-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)
760	CA	-8	California: San Diego North County to Sierra Nevada (split from 619)
762	GA	-5	N Georgia: Columbus, Augusta (overlaid on 706)
763	MN	-6	Minnesota: Minneapolis NW (split from 612; see also 952)
764	CA	-8	(overlay on 650; SUSPENDED)
765	IN	-5	Indiana: outside Indianapolis (split from 317)
767	--	-4	Dominica (split from 809)
769	MS	-6	Mississippi: Meridian, Jackson area (overlaid on 601; perm 7/19/04, mand 3/14/05)
770	GA	-5	Georgia: Atlanta suburbs: outside of I-285 ring road (part of what used to be 404; see also overlay 678)
772	FL	-5	S. Central Florida: St. Lucie, Martin, and Indian River counties (split from 561; eff 2/11/02; mand 11/11/02)
773	IL	-6	Illinois: city of Chicago, outside the loop (see 312; overlay 872)
774	MA	-5	Cent. Massachusetts: Framingham; Cape Cod (see split 978, overlaid on 508, eff 4/2/01)
775	NV	-8	N. Nevada: Reno (all of NV except Clark County area; see 702)
778	BC	-8	Canada: British Columbia: Greater Vancouver (overlaid on 604, per 11/3/01; see also 250)
779	IL	-6	NW Illinois: Rockford, Kankakee (overlaid on 815; eff 8/19/06, mand 2/17/07)
780	AB	-7	Canada: Northern Alberta, north of Lacombe (see 403)
781	MA	-5	Massachusetts: Boston surburbs, to the north and west (see splits 617, 508; overlay 339)
784	--	-4	St. Vincent & Grenadines (split from 809)
785	KS	-6	N & W Kansas: Topeka (split from 913)
786	FL	-5	SE Florida, Monroe County (Miami; overlaid on 305)
787	PR	-4*	Puerto Rico (see overlay 939, perm 8/1/01)
800	--	?	US/Canada toll free (see 888, 877, 866, 855, 844, 833, 822)
801	UT	-7	Utah: Salt Lake City Metro (see split 385, eff 3/30/02; see also split 435)
802	VT	-5	Vermont
803	SC	-5	South Carolina: Columbia, Aiken, Sumter (see 843, 864)
804	VA	-5	E Virginia: Richmond (see splits 757, 434)
805	CA	-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)
806	TX	-6	Panhandle Texas: Amarillo, Lubbock
807	ON	-5/-6	Canada: W Ontario: Thunder Bay region to Manitoba border
808	HI	-10*	Hawaii
809	--	-4	Dominican Republic (see splits 264, 268, 284, 340, 441, 473, 664, 758, 767, 784, 868, 876; overlay 829)
810	MI	-5	E Michigan: Flint, Pontiac (see 248; split 586)
811	--	--	Reserved for special applications
812	IN	-6/-5	S Indiana: Evansville, Cincinnati outskirts in IN, Columbus, Bloomington (mostly GMT-5)
813	FL	-5	SW Florida: Tampa Metro (splits 727 St. Petersburg, Clearwater, and 941 Sarasota)
814	PA	-5	Cent. Pennsylvania: Erie
815	IL	-6	NW Illinois: Rockford, Kankakee (see overlay 779; eff 8/19/06, mand 2/17/07)
816	MO	-6	N Missouri: Kansas City (see split 660, overlay 975)
817	TX	-6	N Cent. Texas: Fort Worth area (see 254, 940)
818	CA	-8	S California: Los Angeles: San Fernando Valley (see 213, 310, 562, 626, 747)
819	QC	-5	NW Quebec: Trois Rivieres, Sherbrooke, Outaouais (Gatineau, Hull), and the Laurentians (up to St Jovite / Tremblant) (see 867)
822	--	?	US/Canada toll free (proposed, may not be in use yet)
828	NC	-5	W North Carolina: Asheville (split from 704)
829	--	-4	Dominican Republic (perm 1/31/05; mand 8/1/05; overlaid on 809)
830	TX	-6	Texas: region surrounding San Antonio (split from 210)
831	CA	-8	California: central coast area from Santa Cruz through Monterey County
832	TX	-6	Texas: Houston (overlay 713/281)
833	--	?	US/Canada toll free (proposed, may not be in use yet)
835	PA	-5	SE Pennsylvania: Allentown, Bethlehem, Reading, West Chester, Norristown (overlaid on 610, eff 5/1/01; see also 484)
843	SC	-5	South Carolina, coastal area: Charleston, Beaufort, Myrtle Beach (split from 803)
844	--	?	US/Canada toll free (proposed, may not be in use yet)
845	NY	-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 6/5/00)
847	IL	-6	Northern NE Illinois: northwestern suburbs of chicago (Evanston, Waukegan, Northbrook; see overlay 224)
848	NJ	-5	Cent. New Jersey: Toms River, New Brunswick, Bound Brook (see overlay 732)
850	FL	-6/-5	Florida panhandle, from east of Tallahassee to Pensacola (split from 904); western panhandle (Pensacola, Panama City) are UTC-6
855	--	?	US/Canada toll free (proposed, may not be in use yet)
856	NJ	-5	SW New Jersey: greater Camden area, Mt Laurel (split from 609)
857	MA	-5	Massachusetts: greater Boston (overlaid on 617, eff 4/2/01)
858	CA	-8	S California: San Diego (see split 760; overlay 619, 935)
859	KY	-5	N and Central Kentucky: Lexington; suburban KY counties of Cincinnati OH metro area; Covington, Newport, Ft. Thomas, Ft. Wright, Florence (split from 606)
860	CT	-5	Connecticut: areas outside of Fairfield and New Haven Counties (split from 203, overlay 959)
862	NJ	-5	N New Jersey: Newark Paterson Morristown (overlaid on 973)
863	FL	-5	Florida: Lakeland, Polk County (split from 941)
864	SC	-5	South Carolina, upstate area: Greenville, Spartanburg (split from 803)
865	TN	-5	E Tennessee: Knoxville, Knox and adjacent counties (split from 423; part of what used to be 615)
866	--	?	US/Canada toll free
867	YT	-5/-6/-7/-8	Canada: Yukon, Northwest Territories, Nunavut (split from 403/819)
868	--	-4	Trinidad and Tobago ("new" -- see 809)
869	--	-4	St. Kitts & Nevis
870	AR	-6	Arkansas: areas outside of west/central AR: Jonesboro, etc
872	IL	-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
878	PA	-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
898	--	?	VoIP service
900	--	?	US toll calls -- prices vary with the number called
901	TN	-6	W Tennessee: Memphis metro area (see 615, 931, split 731)
902	NS	-4	Canada: Nova Scotia, Prince Edward Island
903	TX	-6	NE Texas: Tyler (see overlay 430, eff 7/20/02)
904	FL	-5	N Florida: Jacksonville (see splits 352, 386, 850)
905	ON	-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)
906	MI	-6/-5	Upper Peninsula Michigan: Sault Ste. Marie, Escanaba, Marquette (UTC-6 towards the WI border)
907	AK	-9	Alaska
908	NJ	-5	Cent. New Jersey: Elizabeth, Basking Ridge, Somerville, Bridgewater, Bound Brook
909	CA	-8	California: Inland empire: San Bernardino (see split 951), Riverside
910	NC	-5	S Cent. North Carolina: Fayetteville, Wilmington (see 336)
911	--	--	Emergency
912	GA	-5	SE Georgia: Savannah (see splits 229, 478)
913	KS	-6	Kansas: Kansas City area (see 785)
914	NY	-5	S New York: Westchester County (see 845)
915	TX	-7/-6	W Texas: El Paso (see splits 325 eff 4/5/03; 432, eff 4/5/03)
916	CA	-8	NE California: Sacramento, Walnut Grove, Lincoln, Newcastle and El Dorado Hills (split to 530)
917	NY	-5	New York: New York City (cellular, see 646)
918	OK	-6	E Oklahoma: Tulsa
919	NC	-5	E North Carolina: Raleigh (see split 252, overlay 984)
920	WI	-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)
925	CA	-8	California: Contra Costa area: Antioch, Concord, Pleasanton, Walnut Creek (split from 510)
927	FL	-5	Florida: Cellular coverage in Orlando area
928	AZ	-7*	Central and Northern Arizona: Prescott, Flagstaff, Yuma (split from 520)
931	TN	-6	Middle Tennessee: semi-circular ring around Nashville (split from 615)
935	CA	-8	S California: San Diego (see split 760; overlay 858, 619; assigned but not in use)
936	TX	-6	SE Texas: Conroe, Lufkin, Nacogdoches, Crockett (split from 409, see also 979)
937	OH	-5	SW Ohio: Dayton (part of what used to be 513)
939	PR	-4*	Puerto Rico (overlaid on 787, perm 8/1/01)
940	TX	-6	N Cent. Texas: Denton, Wichita Falls (split from 254, 817)
941	FL	-5	SW Florida: Sarasota and Manatee counties (part of what used to be 813; see split 863)
947	MI	-5/-6	Michigan: Oakland County (overlays 248, perm 5/5/01)
949	CA	-8	California: S Coastal Orange County (split from 714)
951	CA	-8	California: W Riverside County (split from 909; eff 7/17/04)
952	MN	-6	Minnesota: Minneapolis SW, Bloomington (split from 612; see also 763)
954	FL	-5	Florida: Broward County area, incl Ft. Lauderdale (part of what used to be 305, see overlay 754)
956	TX	-6	Texas: Valley of Texas area; Harlingen, Laredo (split from 210)
957	NM	-7	New Mexico (pending; region unknown)
959	CT	-5	Connecticut: Hartford, New London (postponed; was overlaid on 860 perm 1/6/01; mand 3/1/01???)
970	CO	-7	N and W Colorado (part of what used to be 303)
971	OR	-8	Oregon: Metropolitan Portland, Salem/Keizer area, incl Cricket Wireless (see 503; perm 10/1/00)
972	TX	-6	Texas: Dallas Metro (overlays 214/469)
973	NJ	-5	N New Jersey: Newark, Paterson, Morristown (see overlay 862; split from 201)
975	MO	-6	N Missouri: Kansas City (overlaid on 816)
976	--	--	Unassigned
978	MA	-5	Massachusetts: north of Boston to NH (see split 978 -- this is the northern half of old 508; see overlay 351)
979	TX	-6	SE Texas: Bryan, College Station, Bay City (split from 409, see also 936)
980	NC	-5	North Carolina: (overlay on 704; perm 5/1/00, mand 3/15/01)
984	NC	-5	E North Carolina: Raleigh (overlaid on 919, perm 8/1/01, mand 2/5/02 POSTPONED)
985	LA	-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 2/12/01; mand 10/22/01)
989	MI	-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

 

* indicates that daylight savings time is not observed.

"split" refers to a service area served by one area code being subdivided into two or more areas, with the original area code serving one of the subdivisions and new areacode(s) serving the other(s).

"overlay" refers to a service area being served by two or more area codes simultaneously. usually i write "X overlaid on Y" to mean that X is a new areacode that will service an area that previously was serviced solely by Y.

the advantage of a split is that for intra-service area dialing, only 7 digits are required, but some existing users will be forced to change their web site, stationery, business cards, etc. in contrast, an overlay only affects new customers, so is less of a burden; however, neighbors may have to dial 11 digits to call each other.