The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or 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.AT&T (1955) Notes on Distance Dialing Area codes with two identical trailing digits are easily recognizable codes (ERC). 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 Easily recognizable code (ERC) 201 North-east New Jersey (Bergen County and Hudson County) Created for all of New Jersey 1956: split to create 609 1990: split to create 908 1997: split to create 973 2001: overlaid by 551 202 Washington, D.C. (all) 2021: overlaid by 771 203 South-west Connecticut (Bridgeport, Danbury, New Haven, Waterbury) Created for all of Connecticut 1995: split to create 860 2009: overlaid by 475 204 Manitoba (all) 2012: overlaid by 431 2022: overlaid by 584 205 Western and central Alabama (Birmingham, Tuscaloosa) Created for all of Alabama 1995: split to create 334 1998: split to create 256 2019: overlaid by 659 206 Washington (Seattle area) Created for all of Washington 1957: split to create 509 1995: split to create 360 1997: split to create 425 and 253 207 Maine (all) 208 Idaho (all) 2017: overlaid by 986 209 Part of central California (Stockton, Modesto, and Merced, extending into central Yosemite National Park) Split of 916 1998: split to create 559 2022: overlaid by 350 210 Texas (San Antonio metropolitan area) Split of 512 1997: split three ways to create 830 and 956 2017: overlaid by 726 211 Not assignable; N11 code for community services, local/regional information service 212 Borough of Manhattan in New York City Created for all of New York City 1984: split to create 718 for Brooklyn, Queens, and Staten Island 1992: the Bronx switched to 718 1992: overlaid by 917 1999: overlaid by 646 2017: overlaid by 332 213 California (central area of Los Angeles) Created for the southern third of California 1951: split to create 714 1957: split to create 805 1984: split to create 818 1991: split to create 310 1998: split to create 323 2017: merged with 323 as an overlay 2024: overlaid by 738 214 Texas (Dallas metropolitan area) 1953: split to create 817 1990: split to create 903 1996: split to create 972 1999: merged with 972 and overlaid with 469 2021: overlaid by 945 215 Pennsylvania (Philadelphia area, including all its suburbs and parts of surrounding counties) 1994: split to create 610 1997: overlaid by 267 2018: overlaid by 445 216 Ohio (Cleveland area) 1996: split to create 330 1997: split to create 440 217 Central Illinois (Springfield, Champaign, Decatur, Urbana, Lincoln) 1957: split to create a part of 309 2021: overlaid by 447 218 Northern Minnesota (Duluth, Moorhead, Thief River Falls, Bemidji, Brainerd, International Falls) 1954: split to create 507 219 Indiana (Gary area) Split of 317 2002: split to create 260 and 574 220 Central Ohio outside of Franklin County (suburban Columbus) Overlaid on area code 740 221 Not in use; available for geographic assignment 222 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 223 South-central Pennsylvania (Harrisburg, Gettysburg, Lancaster, York) Overlaid on 717 Mnemonic: ABE 224 Illinois (North and northwest suburbs of Chicago) Overlaid on 847 225 East-central Louisiana (Baton Rouge) Created by split of 504 226 Southwestern Ontario (London, Windsor, Kitchener-Waterloo, Cambridge) Overlaid on 519 2016: overlaid by 548 2023: overlaid by 382 487 reserved as a fifth area code for the region. 227 Western Maryland (Washington, D.C., suburbs; all counties which touch the Potomac River; Silver Spring, Hagerstown, Frederick, Rockville, Cumberland) Overlaid on 240/301 228 Mississippi (Gulfport, Biloxi, Pascagoula, Bay St. Louis, and southmost Mississippi) Split of 601 229 Southwestern Georgia (Albany, Valdosta, Bainbridge, Americus, Fitzgerald) Split of 912 230 Not in use; available for geographic assignment 231 Northwestern Michigan (Muskegon, Traverse City, Ludington, Petoskey) Split of 616 232 Not in use; available for geographic assignment 233 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 234 Northeastern Ohio (Akron, Canton, Youngstown, Warren) Overlaid on 330 235 Eastern Missouri (Columbia, Jefferson City, Hannibal, Cape Girardeau, Farmington, Lake of the Ozarks, Poplar Bluff) Overlaid on 573 236 British Columbia Overlaid on 604, 250, and 778 2019: overlaid by 672 2025: overlaid by 257 237 Not in use; available for geographic assignment 238 Not in use; available for geographic assignment 239 Southwest Florida (Lee County, Collier County, the mainland part of Monroe County, including Cape Coral, Fort Myers, Naples, and Everglades) Split of 941 240 Western Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland) Overlaid on 301 2023: overlaid by 227 241 Not in use; available for geographic assignment 242 The Bahamas (all) Split of 809 Mnemonic: BHA 243 Not in use; available for geographic assignment 244 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 245 Not in use; available for geographic assignment 246 Barbados (all) Split of 809 Mnemonic: BIM 247 Not in use; available for geographic assignment 248 Michigan (Oakland County) Split of 810 2002: overlaid by 947 249 Ontario (Northeastern Ontario and Central Ontario: Greater Sudbury, Sault Ste. Marie, North Bay, etc.) Overlaid on 705 2022: overlaid by 683 460 reserved for overlay 250 British Columbia (Victoria, Prince George, Prince Rupert, Kelowna, all areas except for Metro Vancouver and the Fraser Valley; and the isolated border town of Hyder, Alaska, US) Split of 604 2008: overlaid by 778 2013: overlaid by 236 2019: overlaid by 672 251 Alabama (Mobile County, Baldwin County, Bay Minette, Jackson, Brewton, Citronelle, and a part of southwestern Alabama) Split of 334 252 North Carolina (Greenville, New Bern, Elizabeth City, Kinston, Outer Banks, Rocky Mount) Split of 919 253 Washington (Tacoma, McChord Air Force Base, Fort Lewis, Lakewood, Auburn, Puyallup, Enumclaw, Spanaway, and the southern suburbs of Seattle) Split of 206 254 Texas (Waco, Killeen, Temple, Belton, and Stephenville) Split of 817 255 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 256 Alabama (Huntsville, Decatur, Cullman, Gadsden, Madison, Florence, Sheffield, Tuscumbia, Fort Payne, Scottsboro, and most of northern Alabama) Split of 205 2010: overlaid by 938 257 British Columbia (all, and the isolated border town of Hyder, Alaska, US) Overlaid on 236/672/778, 604, 250 258 Not in use; available for geographic assignment 259 Not in use; available for geographic assignment 260 Indiana (Fort Wayne, New Haven, Decatur, Angola, Huntington, Wabash, and most of northeastern Indiana) Split of 219 261 Not in use; available for geographic assignment 262 Wisconsin (Racine, Kenosha, Menomonee Falls, Waukesha, and most of southeastern Wisconsin excluding Milwaukee County) Split of 414 263 Quebec (Montreal metropolitan area) Overlaid on 514 and 438 264 Anguilla (all) Split of 809 Mnemonic: ANG 265 Not in use; available for geographic assignment 266 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 267 Pennsylvania (Philadelphia and surrounding suburban area) Overlaid on 215 268 Antigua and Barbuda (all) Split of 809 Mnemonic: ANT 269 Michigan (Battle Creek, Kalamazoo, Benton Harbor, Allegan, Hastings, St. Joseph, and most of southwestern Michigan) Split of 616 270 Kentucky (Owensboro, Paducah, Bowling Green, Hopkinsville, Henderson, Elizabethtown, and most of western Kentucky) Split of 502 2014: overlaid by 364 271 Not in use; available for geographic assignment 272 Pennsylvania (the Wyoming Valley, including Scranton and Wilkes-Barre, Bloomsburg, Danville, Nanticoke, Williamsport, and most of northeastern Pennsylvania) Overlaid on 570 273 Quebec (Quebec City, Saguenay, the Gaspé Peninsula, Côte-Nord, Chibougamau, St-Georges), Maine (Estcourt Station) reserved for relief (without schedule) of 367/418/581 274 Wisconsin (Appleton, Sheboygan, Oshkosh, Green Bay, Manitowoc, Marquette, Fond du Lac, and parts of eastern Wisconsin—but not in Milwaukee County) Overlaid on 920 275 Not in use; available for geographic assignment 276 Virginia (Bristol, Abingdon, Wytheville, Martinsville, Bluefield, Big Stone Gap, and the remainder of southwestern Virginia) Split of 540 277 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 278 Not in use, but reserved for future geographic assignment Is reserved for relief of 734, but relief was canceled 279 California (the Sacramento Metropolitan Area) Overlaid on 916 280 Not in use; available for geographic assignment 281 Texas (Houston area) Split of 713 1999: merged with 713 as an overlay 1999: overlaid by 832 2014: overlaid by 346 2025: overlaid by 621 282 Not in use; available for geographic assignment 283 Ohio (Cincinnati, Middletown, Hamilton, Lebanon, and parts of southern and southwestern Ohio) Overlaid on 513 284 British Virgin Islands (all) Split of 809 Mnemonic: BVI 285–287 Not in use; available for geographic assignment 288 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 289 Ontario (Oshawa-Hamilton and Golden Horseshoe, excluding Toronto 416 but including its adjacent suburbs) Overlaid on 905 2013: overlaid by 365 2021: overlaid by 742 537 reserved as a fifth area code for the region. 290–299 Not in use; reserved for potential North American Numbering Plan expansion
300–399
Code Numbering plan area or use Date Notes 300 Not in use; available for non-geographic assignment Easily recognizable code (ERC) 301 Maryland (Silver Spring; Washington, D.C., suburbs; all counties which touch the Potomac River; Waldorf, Hagerstown, Frederick, Rockville, Cumberland; and land line telephones in western Maryland) Created for all of Maryland 1991: split to create 410 1997: overlaid by 240 2023: overlaid by 227 302 Delaware (all) 303 Colorado (Denver, Boulder, Longmont, Aurora, Golden, Limon, Littleton, Centennial; central Colorado) Created for all of Colorado 1988: split to create 719 1995: split to create 970 1998: overlaid by 720 2022: overlaid by 983 304 West Virginia 2009: overlaid by 681 305 Florida (all of Miami-Dade County and the Florida Keys) Created for all of Florida 1953: split to create 813 1965: split to create 904 1988: split to create 407 1995: split to create 954 1998: partially overlaid by 786, in Miami-Dade County only 2008: completely overlaid by 786, including the Florida Keys 2023: overlaid with 645 306 Saskatchewan (all) 2012: overlaid by 639 2021: overlaid by 474 307 Wyoming (all) 308 Nebraska (North Platte, Scottsbluff, McCook, Kearney, Grand Island; western Nebraska) Split of 402 309 Illinois (Peoria, Bloomington, Moline, Rock Island, Galesburg; west-central Illinois) Created from parts of 217 and 815