List of original NANP area codes
This is the list of original North American Numbering Plan area codes of 86 plan areas as defined by AT&T in 1947.

List of original NANP area codes

Section Title:
Table Section Text: This is the list of original North American Numbering Plan area codes of 86 plan areas as defined by AT&T in 1947.

Area code	Assigned state, province, or region

201	New Jersey

202	District of Columbia

203	Connecticut

204	Manitoba

205	Alabama

206	Washington

207	Maine

208	Idaho

212	New York (New York City)

213	California (Southern California, including Los Angeles)

214	Texas (northeastern Texas, including Dallas/Fort Worth)

215	Pennsylvania (southeastern Pennsylvania, including Philadelphia)

216	Ohio (northeastern Ohio, including Cleveland)

217	Illinois (central)

218	Minnesota (except southeastern part of state)

301	Maryland

302	Delaware

303	Colorado

304	West Virginia

305	Florida

306	Saskatchewan

307	Wyoming

312	Illinois (Chicago metropolitan area)

313	Michigan (southeast Michigan, including Detroit)

314	Missouri (eastern Missouri, including St. Louis)

315	New York (central upstate New York, including Syracuse)

316	Kansas (southern half of Kansas)

317	Indiana (northern two-thirds of Indiana, including Indianapolis)

319	Iowa (eastern third of Iowa)

401	Rhode Island

402	Nebraska

403	Alberta

404	Georgia

405	Oklahoma

406	Montana

412	Pennsylvania (western Pennsylvania, including Pittsburgh)

413	Massachusetts (western Massachusetts, including Springfield)

414	Wisconsin (southern and northeastern Wisconsin, including Milwaukee)

415	California (northern/central California, including San Francisco and Sacramento)

416	Ontario (southern portion from Cobourg to Kitchener, including Toronto)

418	Quebec (eastern half of Quebec, including Québec City)

419	Ohio (northwest Ohio, including Toledo)

501	Arkansas

502	Kentucky

503	Oregon

504	Louisiana

505	New Mexico

512	Texas (central and southern Texas, including Austin and San Antonio)

513	Ohio (southwest Ohio, including Cincinnati)

514	Quebec (western half of Quebec, including Montreal)

515	Iowa (central Iowa, including Des Moines)

517	Michigan (south-central portion of Lower Peninsula, including Lansing)

518	New York (northeastern New York, including Albany)

601	Mississippi

602	Arizona

603	New Hampshire

604	British Columbia

605	South Dakota

612	Minnesota (southeastern portion, including Minneapolis)

613	Ontario (all except a southern portion covering Oshawa-Toronto-Kitchener)

614	Ohio (southeast, including Columbus)

616	Michigan (Grand Rapids, Upper Peninsula, western portion of Lower Peninsula)

617	Massachusetts (eastern Massachusetts, including Boston)

618	Illinois (southern Illinois, including East St. Louis and Carbondale)

701	North Dakota

702	Nevada

703	Virginia

704	North Carolina

712	Iowa (western third, including Sioux City)

713	Texas (southeastern Texas, including Houston)

715	Wisconsin (northern Wisconsin)

716	New York (western New York, including Buffalo and Rochester)

717	Pennsylvania (eastern half, except for the Delaware and Lehigh Valleys)

801	Utah

802	Vermont

803	South Carolina

812	Indiana (southern Indiana)

814	Pennsylvania (northwestern and central Pennsylvania)

815	Illinois (northern Illinois, except Chicago and Quad Cities)

816	Missouri (northwestern Missouri, including Kansas City)

901	Tennessee

902	Nova Scotia, Prince Edward Island, New Brunswick

913	Kansas (northern half of Kansas)

914	New York (southern New York, including Long Island, but excluding New York City)

915	Texas (western Texas, including El Paso)

916	California (northern California, but not including Sacramento)

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