| Area Code | State | Cntry Code | Cities or Area |
| 201 | NJ | USA | Hackensack, Jersey City, Union City, Rutherford, Leonia |
| 202 | DC | USA | Washington, District of Columbia |
| 203 | CT | USA | Bridgeport, New Haven, Stamford, Waterbury, Norwalk, Danbury, Greenwich |
| 204 | MB | CAN | Manitoba -- All regions |
| 205 | AL | USA | Birmingham, Huntsville, Tuscaloosa, Anniston |
| 206 | WA | USA | Seattle, Everett |
| 207 | ME | USA | All regions |
| 208 | ID | USA | All regions |
| 209 | CA | USA | Stockton, Modesto, Merced, Oakdale |
| 210 | TX | USA | San Antonio |
| 212 | NY | USA | New York City (Manhattan only) |
| 213 | CA | USA | Los Angeles, Compton |
| 214 | TX | USA | Dallas |
| 215 | PA | USA | Philadelphia, Lansdale, Doylestown, Newtown, Quakertown |
| 216 | OH | USA | Cleveland, Terrace, Independence, Montrose |
| 217 | IL | USA | Springfield, Champaign Urbana, Decatur, Central Illinois |
| 218 | MN | USA | Duluth, Virginia, Moorhead, Brainerd, Wadena |
| 219 | IN | USA | Gary, Hammond, Merrillville, Portage, Michigan City, Valparaiso |
| 224 | IL | USA | Overlay of 847 area code(Chicago) |
| 225 | LA | USA | Baton Rouge and Surrounding Areas |
| 228 | MS | USA | Gulfport, Biloxi, Pascagoula, Bay St. Louis |
| 229 | GA | USA | Albany, Valdosta, Thomasville, Bainbridge, Tifton, Americus, Moultrie, Cordele |
| 231 | MI | USA | Muskegon, Traverse City, Big Rapids, Cadillac, Cheboygan |
| 234 | OH | USA | Overlay of 330 area code. |
| 239 | FL | USA | Ft. Myers, Naples, Cape Coral, Bonita Springs, Immokalee, Lehigh Acres, Sanibel, Captiva, Pine Island |
| 240 | MD | USA | Overlay of 301 Area Code (Maryland) |
| 248 | MI | USA | Troy, Pontiac, Royal Oak, Birmingham, Rochester, Farmington Hills |
| 250 | BC | CAN | British Columbia: Victoria, Kamloops, Kelowna, Prince George, Nanaimo |
| 251 | AL | USA | Mobile, Prichard, Tillmans Corner, Fairhope, Jackson, Gulfshores |
| 252 | NC | USA | Greenville, Rocky Mount, Wilson, New Bern |
| 253 | WA | USA | Tacoma, Kent, Auburn |
| 254 | TX | USA | Waco, Killeen, Temple |
| 256 | AL | USA | Huntsville, Anniston, Decatur, Gadsden, Florence |
| 260 | IN | USA | Fort Wayne, Huntington, Wabash, Lagrange |
| 262 | WI | USA | Green Bay, Appleton, Racine, Kenosha, Oshkosh, Waukesha, Menomonee Falls, West Bend, Sheboygan |
| 267 | PA | USA | Overlay of 215 Area Code (Philadelphia Area) |
| 269 | MI | USA | Kalamazoo, Battle Creek, St. Joseph, Three Rivers, South Haven, Benton Harbor, Sturgis, Hastings |
| 270 | KY | USA | Bowling Green, Paducah, Owensboro, Hopkinsville |
| 276 | VA | USA | Martinsville, Abingdon, Wytheville, Bristol, Marion, Collinsville |
| 281 | TX | USA | Houston, Sugar Land, Buffalo, Airline, Greenspoint, Spring |
| 289 | ON | CAN | Overlay of 905 area code. |
| 301 | MD | USA | Rockville, Silver Spring, Bethesda, Gaithersburg, Frederick, Laurel, Hagerstown |
| 302 | DE | USA | Delaware: All regions |
| 303 | CO | USA | Denver, Littleton, Englewood, Arvada, Boulder, Aurora |
| 304 | WV | USA | West Virginia: All regions |
| 305 | FL | USA | Miami, Perrine, Homestead, Florida Keys |
| 306 | SK | CAN | Saskatchewan: All regions |
| 307 | WY | USA | Wyoming: All regions |
| 308 | NE | USA | Grand Island, Kearney, North Platte, Scottsbluff |
| 309 | IL | USA | Peoria, Bloomington, Rock Island, Galesburg, Macomb |
| 310 | CA | USA | Compton, Santa Monica, Beverly Hills, West LA, Inglewood, Redondo, El Segundo, Culver City, Torrance |
| 312 | IL | USA | Chicago (Downtown area), Wheeling |
| 313 | MI | USA | Detroit, Livonia, Dearborn |
| 314 | MO | USA | Saint Louis, Ladue, Kirkwood, Creve Coeur, Overland, Ferguson |
| 315 | NY | USA | Syracuse, Utica, Watertown, Rome |
| 316 | KS | USA | Wichita, Hutchinson |
| 317 | IN | USA | Indianapolis, Carmel, Fishers, Greenwood |
| 318 | LA | USA | Shreveport, Monroe, Alexandria, Ruston, Natchitoches |
| 319 | IA | USA | Cedar Rapids, Iowa City, Waterloo, Burlington |
| 320 | MN | USA | St. Cloud, Alexandria, Willmar, Little Falls |
| 321 | FL | USA | Brevard County (Cocoa, Melbourne, Eau Gallie, Titusville), Overlay of most of 407 Area Code. |
| 323 | CA | USA | Los Angeles, Montebello |
| 325 | TX | USA | Albilene, San Angelo, Brownwood, Synder, Swee |
| 330 | OH | USA | Akron, Youngstown, Canton, Warren, Kent, Alliance, Medina, New Philadelphia |
| 334 | AL | USA | Montgomery, Dothan, Auburn, Selma, Opelika, Phenix City, Tuskegee |
| 336 | NC | USA | Greensboro, Winston Salem, Highpoint, Burlington, Lexington, Asheboro, Reidsville |
| 337 | LA | USA | Lake Charles, Lafayette, New Iberia, Leesville, Opelousas, Crowley |
| 339 | MA | USA | Overlay of 781 area code. |
| 340 | VI | USA | U.S. Virgin Islands |
| 347 | NY | USA | Overlay of 718 Area Code (New York City). |
| 351 | MA | USA | Overlay of 978 area code. |
| 352 | FL | USA | Gainesville, Ocala, Leesburg, Brookville |
| 360 | WA | USA | Vancouver, Olympia, Bellingham, Silverdale |
| 361 | TX | USA | Corpus Christi, Victoria |
| 386 | FL | USA | Daytona, Deland, Lake City, DeBary, Orange City, New Smyrna Beach, Palatka, Palm Coast |
| 401 | RI | USA | Rhode Island: All regions |
| 402 | NE | USA | Lincoln, Omaha, Norfolk, Columbus |
| 403 | AB | CAN | Alberta: Calgary, Lethbridge, Banff, Medicine Hat, Red Deer |
| 404 | GA | USA | Atlanta |
| 405 | OK | USA | Oklahoma City, Norman, Stillwater, Britton, Bethany, Moore |
| 406 | MT | USA | Montana: All regions |
| 407 | FL | USA | Orlando, Winter Park, Kissimmee, Cocoa, Lake Buena Vista, Melbourne |
| 408 | CA | USA | San Jose, Sunnyvale, Campbell Los Gatos, Salinas, San Martin, Saratoga, Morgan Hill, Gilroy |
| 409 | TX | USA | Galveston, Beaumont, Port Arthur, Texas City, Nederland |
| 410 | MD | USA | Baltimore, Annapolis, Towson, Catonsville, Glen Burnie |
| 412 | PA | USA | Pittsburgh |
| 413 | MA | USA | Springfield, Pittsfield, Holyoke, Amherst |
| 414 | WI | USA | Milwaukee, Greendale, Franklin, Cudahy, St. Francis, Brown Deer, Whitefish Bay |
| 415 | CA | USA | San Francisco |
| 416 | ON | CAN | Toronto |
| 417 | MO | USA | Joplin, Springfield, Branson, Lebanon |
| 418 | QC | CAN | Quebec |
| 419 | OH | USA | Toledo, Lima, Mansfield, Sandusky, Findlay |
| 423 | TN | USA | Chattanooga, Cleveland, Johnson City, Bristol, Kingsport, Athens, Morristown, Greeneville |
| 424 | CA | USA | Overlay of 310 Area Code |
| 425 | WA | USA | Bothell, Everett, Bellevue, Kirkland, Renton |
| 430 | TX | USA | Overlay of 903 Area Code. |
| 432 | TX | USA | Midland, Terminal, Odessa, Big Spring, Alpine, Pecos, Fort Stockton |
| 434 | VA | USA | Lynchburg, Danville, Charlottesville, Madison Heights, South Boston |
| 435 | UT | USA | Logan, St. George, Park City, Tooele, Brigham City |
| 438 | QC | CAN | Future Overlay of 514 Area Code. |
| 440 | OH | USA | Willoughby, Hillcrest, Trinity, Lorain, Elyria |
| 443 | MD | USA | Overlay of 410 Area Code |
| 450 | QC | CAN | Quebec: Laval, Saint Lambert, Longueuil, Sainte Therese |
| 469 | TX | USA | Overlay of 214, 972 Area Codes (Greater Dallas Area). |
| 470 | GA | USA | Overlay of 404, 678, 770. |
| 478 | GA | USA | Macon, Warner Robbins, Dublin, Milledgeville, Forsyth |
| 479 | AR | USA | Fort Smith, Fayetteville, Rogers, Bentonville, Russellville |
| 480 | AZ | USA | Mesa, Scottsdale, Tempe, Chandler, Gilbert |
| 484 | PA | USA | Overlay of 610 Area Code (Allentown, Reading, Bethlehem Area) |
| 501 | AR | USA | Little Rock, Hot Springs |
| 502 | KY | USA | Louisville, Frankfort, Fort Knox, Pleasure Ridge Park |
| 503 | OR | USA | Portland, Salem, Beaverton, Gresham, Hillsboro |
| 504 | LA | USA | New Orleans, Metairie, Kenner, Chalmette |
| 505 | NM | USA | New Mexico: All regions |
| 506 | NB | CAN | New Brunswick: All regions |
| 507 | MN | USA | Rochester, Mankato, Winona, Faribault, Luverne |
| 508 | MA | USA | Worcester, Framingham, Brockton, Plymouth, New Bedford, Marlboro, Natick, Taunton, Auburn, Westboro, Easton |
| 509 | WA | USA | Spokane, Yakima, Walla Walla, Pullman, Kenwick |
| 510 | CA | USA | Oakland, Fremont, Newark, Hayward, Richmond |
| 512 | TX | USA | Austin, San Marcos, Round Rock, Dripping Springs |
| 513 | OH | USA | Cincinnati, Hamilton, Clermont, Middleton, Mason |
| 514 | QC | CAN | Province of Quebec: Montreal Area |
| 515 | IA | USA | Des Moines, Ames, Jefferson |
| 516 | NY | USA | Nassau County: Hempstead, Oceanside, Freeport, Long Beach, Garden City, Glen Cove, Mineola |
| 517 | MI | USA | Lansing, Bay City, Jackson, Howell, Adrian |
| 518 | NY | USA | Albany, Schenectady, Troy, Glens Falls, Saratoga Springs, Lake Placid |
| 519 | ON | CAN | Ontario: London Area, Kitchener, Cambridge, Windsor |
| 520 | AZ | USA | Tucson, Sierra Vista, Nogales, Douglass, Bisbee |
| 530 | CA | USA | Chico, Redding, Marysville, Auburn, Davis, Placerville |
| 540 | VA | USA | Roanoke, Harrisonburg, Fredericksburg, Blacksburg, Winchester, Staunton, Culpeper |
| 541 | OR | USA | Eugene, Medford, Corvallis, Bend, Albany, Roseburg, Klamath Falls |
| 551 | NJ | USA | Overlay of 201 area code. |
| 559 | CA | USA | Fresno, Visalia, Madera, San Joaquin, Porterville, Hanford |
| 561 | FL | USA | Palm Beaches, Boca Raton, Boynton Beach |
| 562 | CA | USA | Long Beach, Norwalk, Alamitos, Downey, Whittier, Lakewood, La Habra |
| 563 | IA | USA | Davenport, Dubuque, Clinton, Muscatine, Decorah, Manchester, West Union |
| 567 | OH | USA | Overlay of 419 area code. |
| 570 | PA | USA | Wilkes-Barre, Scranton, Stroudsburg, Williamsport, Pittston |
| 571 | VA | USA | Overlay of 703 area code. |
| 573 | MO | USA | Columbia, Cape Girardeau, Jefferson City |
| 574 | IN | USA | South Bend, Elkhart, Mishawaka, Granger, La Porte |
| 580 | OK | USA | Lawton, Enid, Ponca City, Ardmore, Duncan |
| 585 | NY | USA | Rochester, East Rochester, Olean, Batavia, Webster, Fairport, Henrietta |
| 586 | MI | USA | Warren, Mount Clemens, Roseville, Center Line, Utica, Romeo, Richmond, Washington, New Baltimore |
| 601 | MS | USA | Southern Mississippi: Jackson, Hattiesburg, Vicksburg, Meridian |
| 602 | AZ | USA | Phoenix |
| 603 | NH | USA | New Hampshire: All regions |
| 604 | BC | CAN | British Columbia: Vancouver, Richmond, New Westminster |
| 605 | SD | USA | South Dakota: All regions |
| 606 | KY | USA | Ashland, Winchester, Pikeville, Somerset |
| 607 | NY | USA | Elmira, Ithaca, Stamford, Binghamton, Endicott, Oneonta |
| 608 | WI | USA | Madison, La Crosse, Janesville, Middleton, Monroe, Platteville, Dodgeville |
| 609 | NJ | USA | Atlantic City, Trenton, Princeton, Pleasantville, Fort Dix, Lawrenceville |
| 610 | PA | USA | Allentown, Reading, Bethlehem, West Chester, Pottstown |
| 612 | MN | USA | Minneapolis, Richfield |
| 613 | ON | CAN | Ontario East: Ottawa, Kingston, Belleville, Cornwall, Kanata |
| 614 | OH | USA | Columbus, Worthington, Dublin, Reynoldsburg, Westerville, Gahanna, Hilliard |
| 615 | TN | USA | Nashville, Mufreesboro, Hendersonville, Frank |
| 616 | MI | USA | Grand Rapids, Holland, Grand Haven, Greenville, Zeeland, Ionia |
| 617 | MA | USA | Boston, Cambridge, Quincy, Newton, Brookline, Brighton, Somerville, Dorchester, Hyde Park, Jamaica Plain |
| 618 | IL | USA | Collinsville, Alton, Carbondale, Belleville, Mount Vernon, Centralia |
| 619 | CA | USA | San Diego, Chula Vista, El Cajon, La Mesa, National City, Coronado |
| 620 | KS | USA | Hutchinson, Emporia, Liberal, Pittsburg, Dodge City, Garden City, Coffeyville |
| 623 | AZ | USA | Glendale, Sun City, Peoria |
| 626 | CA | USA | Pasadena, Alhambra, Covina, El Monte, La Puenta |
| 630 | IL | USA | La Grange, Roselle, Hinsdale, Downers Grove, Naperville, Lombard, Elmhurst, Aurora, Wheaton |
| 631 | NY | USA | Suffolk County: Brentwood, Farmingdale, Central Islip, Riverhead, Huntington, Deer Park, Amityville, Lindenhurst |
| 636 | MO | USA | St. Charles, Fenton, Harvester, Chesterfield, Manchester |
| 641 | IA | USA | Fairfield, Mason City, Grinnell, Newton, Knoxville |
| 646 | NY | USA | Overlay of 212 Area Code (New York City). |
| 647 | ON | CAN | Overlay of 416 (Toronto). |
| 650 | CA | USA | South San Francisco, Palo Alto, San Mateo, Mountain View, Redwood City |
| 651 | MN | USA | St. Paul, Redwing, Farmington, Eagan, Lino Lakes, North Branch, Roseville Valley |
| 660 | MO | USA | Warrensburg, Kirksville, Sedalia, Chillicothe, Moberly, Marshall |
| 661 | CA | USA | Bakersfield, Santa Clarita, Palmdale, Simi Valley |
| 662 | MS | USA | Northern Mississippi: Tupelo, Columbus, Greenwood, Greenville, Oxford |
| 678 | GA | USA | Overlay of 404 & 770 area codes. |
| 682 | TX | USA | Overlay of 817 area code. |
| 701 | ND | USA | North Dakota: All regions |
| 702 | NV | USA | Las Vegas & Surrounding Areas. |
| 703 | VA | USA | Arlington, Alexandria, Fairfax, Falls Church, Quantico, Herndon, Vienna |
| 704 | NC | USA | Charlotte, Asheville, Gastonia, Concord, Statesville, Salisbury, Shelby, Monroe |
| 705 | ON | CAN | Eastern Ontario: North Bay, Sault Sainte Marie |
| 706 | GA | USA | Augusta, Columbus, Athens, Rome, Dalton |
| 707 | CA | USA | Eureka, Napa, Santa Rosa, Petaluma, Vallejo |
| 708 | IL | USA | Oak Brook, Calumet City, Harvey (South suburbs of Chicago) |
| 709 | NL | CAN | Newfoundland and Labrador |
| 712 | IA | USA | Sioux City, Council Bluffs, Spencer, Cherokee, Denison |
| 713 | TX | USA | Houston |
| 714 | CA | USA | Anaheim, Santa Anna |
| 715 | WI | USA | Eau Claire, Wausau, Stevens Point, Superior |
| 716 | NY | USA | Buffalo, Niagara Falls, Tonawanda, Williamsville, Jamestown, Lancaster |
| 717 | PA | USA | Harrisburg, York, Lancaster |
| 718 | NY | USA | New York City (Bronx, Brooklyn, Queens, Staten Island) |
| 719 | CO | USA | Colorado Springs, Pueblo, Lamar |
| 720 | CO | USA | Overlay of 303 area code. |
| 724 | PA | USA | Greensburg, Uniontown, Butler, Washington, New Castle, Indiana |
| 727 | FL | USA | Clearwater, St. Petersburg, New Port Richey, Tarpon Springs |
| 731 | TN | USA | Jackson, Dyersburg, Union City, Paris, Brownsville |
| 732 | NJ | USA | New Brunswick, Metuchen, Rahway, Perth Amboy, Toms River, Bound Brook |
| 734 | MI | USA | Ann Arbor, Livonia, Wayne, Wyandotte, Ypsilanti, Plymouth, Monroe |
| 740 | OH | USA | Portsmouth, Newark, Zanesville, Wheeling, Steubenville |
| 754 | FL | USA | Overlay of 954 Area Code (Ft. Lauderdale Area). |
| 757 | VA | USA | Norfolk, Newport News, Williamsburgh |
| 760 | CA | USA | Oceanside, Palm Springs, Victorville, Escondido, Vista, Palm Desert |
| 762 | GA | USA | Overlay of 706 Area Code. |
| 763 | MN | USA | Brooklyn Park, Coon Rapids, Maple Grove, Plymouth, Cambridge, Blaine, Anoka |
| 765 | IN | USA | Lafayette, Muncie, Kokomo, Anderson, Richmond, Marion |
| 769 | MS | USA | Overlay of 601 area code (Southern Mississippi). |
| 770 | GA | USA | Norcross, Chamblee, Smyrna, Tucker, Marietta, Alpharetta, Gainesville |
| 772 | FL | USA | Vero Beach, Port St. Lucie, Stuart, Fort Pierce, Sebastian, Hobe Sound, Jensen Beach, Indiantown |
| 773 | IL | USA | Chicago (except downtown Area is 312) |
| 774 | MA | USA | Overlay of 508 area code. |
| 775 | NV | USA | Reno, Carson City |
| 778 | BC | CAN | Overlay of 604 area code. |
| 780 | AB | CAN | Alberta: Edmonton, Fort McMurray, Leduc, Lloydminster, Sherwood Park |
| 781 | MA | USA | Waltham, Lexington, Burlinton, Dedham, Woburn, Lynn, Malden, Saugus, Reading, Braintree, Wellesley |
| 785 | KS | USA | Topeka, Lawrence, Manhattan, Salina, Junction |
| 786 | FL | USA | Overlay of 305 area code (Miami). |
| 800 | USA | Toll Free | |
| 801 | UT | USA | Utah: All regions |
| 802 | VT | USA | Vermont: All regions |
| 803 | SC | USA | Columbia |
| 804 | VA | USA | Richmond, Lynchburg, Petersburg, |
| 805 | CA | USA | Santa Barbara, Thousand Oaks, San Luis Obispo, Ventura, Oxnard, Simi Valley |
| 806 | TX | USA | Amarillo, Lubbock |
| 807 | ON | CAN | Western Ontario: Thunder Bay |
| 808 | HI | USA | All regions |
| 810 | MI | USA | Flint, Port Huron, Lapeer, Brighton, Sandusky |
| 812 | IN | USA | Evansville, Bloomington, Terre Haute, New Albany |
| 813 | FL | USA | Tampa |
| 814 | PA | USA | Altoona, Johnstown, Erie, Punxsutawney |
| 815 | IL | USA | La Salle, Joliet, Rockford, DeKalb |
| 816 | MO | USA | Kansas City, Saint Joseph, Independence, Gladstone |
| 817 | TX | USA | Fort Worth, Arlington, Euless, Grapevine |
| 818 | CA | USA | Van Nuys, Canoga Park, Burbank, San Fernando, Glendale, N. Hollywood |
| 819 | QC | CAN | Hull, Sherbrooke, Trois-Riviers, Gatineau |
| 828 | NC | USA | Asheville, Hickory, Morganton, Hendersonville, Lenoir, Boone |
| 830 | TX | USA | New Braunfels, Del Rio, Seguin, Kerrville, Eagle Pass, Fredericksburg |
| 831 | CA | USA | Monterey, Santa Cruz, Salinas, Hollister, Aptos, Carmel |
| 832 | TX | USA | Overlay of 713, 281 Area Codes (Houston). |
| 843 | SC | USA | Charleston, Florence, Myrtle Beach, Hilton Head |
| 845 | NY | USA | Poughkeepsie, Spring Valley, Newburgh, Kingston, Nyack, Middletown, Brewster, Pearl River |
| 847 | IL | USA | Northbrook, Skokie, Evanston, Glenview, Waukegan, Desplaines, Elk Grove (North suburbs of Chicago) |
| 848 | NJ | USA | Overlay of 732 area code. |
| 850 | FL | USA | Tallahassee, Pensacola, Fort Walton Beach, Panama City |
| 855 | USA | Toll Free | |
| 856 | NJ | USA | Camden, Haddonfield, Moorestown, Merchantville, Vineland, Laurel Springs |
| 857 | MA | USA | Overlay of 617 area code. |
| 858 | CA | USA | La Jolla, Rancho Bernardo, del Mar, Poway, Rancho Penasquitos, Rancho Santa Fe |
| 859 | KY | USA | Lexington, Covington, Boone, Winchester, Richmond, Danville, Mount Sterling |
| 860 | CT | USA | Hartford, New London, Norwich, Middletown, Bristol |
| 862 | NJ | USA | Overlay of 973 area code. |
| 863 | FL | USA | Lakeland, Winter Haven, Lake Wales, Sebring, Haines City, Bartow, Avon Park, Okeechobee, Wachula |
| 864 | SC | USA | Greenville, Spartanburg, Anderson |
| 865 | TN | USA | Knoxville, Maryville, Oak Ridge, Sevierville, Gatlinburg, Concord, Powell |
| 866 | USA | Toll Free | |
| 867 | YT | CAN | Yukon, Northwest Territories: Whitehorse, Yellow Knife, Nunavut |
| 870 | AR | USA | Texarkana, Jonesboro, Pine Bluff, El Dorado |
| 877 | USA | Toll Free | |
| 878 | PA | USA | Overlay of 412, 724 area codes. |
| 880 | USA | Carribean to U.S. or Canada OR Canada to U.S. Toll Free | |
| 881 | USA | Carribean to U.S. or Canada OR Canada to U.S. Toll Free | |
| 888 | USA | Toll Free | |
| 900 | USA | Used for Mass Calling Value Added Information | |
| 901 | TN | USA | Memphis, Collierville |
| 902 | PE | CAN | Prince Edward Island, Nova Scotia |
| 903 | TX | USA | Longview, Tyler, Texarkana, Paris, Kilgore, Sherman, Denison |
| 904 | FL | USA | Jacksonville, Saint Augustine, Orange Park, Fernandina Beach |
| 905 | ON | CAN | Ontario: Hamilton, Niagara Falls, Markham, Mississauga, Brampton |
| 906 | MI | USA | Marquette, Iron Mountain, Houghton, Sault Ste Marie |
| 907 | AK | USA | All regions |
| 908 | NJ | USA | Elizabeth, New Brunswick, Somerville, Freehold, Unionville, Plainfield |
| 909 | CA | USA | San Bernardino, Ontario, Upland, Pomona, Riverside, Colton, Chino |
| 910 | NC | USA | Fayetteville, Wilmington, Jacksonville, Lumberton, Laurinburg, Southern Pines |
| 912 | GA | USA | Savannah, Macon, Waycross, Brunswick, Statesboro, Vidalia |
| 913 | KS | USA | Melrose, Kansas City |
| 914 | NY | USA | Westchester, Monroe, Mount Vernon, Mount Kisco, Pleasantville |
| 915 | TX | USA | El Paso, Socorro, Fabens, Dell City, Van Horn, Fort Bliss |
| 916 | CA | USA | Sacramento, Roseville, Fair Oaks, Folsom, Elk Grove, South Placer |
| 917 | NY | USA | Overlay of 212/718 (New York City - cellular/pager only) |
| 918 | OK | USA | Tulsa, Broken Arrow, Muskogee, Bartlesville, McAlester |
| 919 | NC | USA | Raleigh, Durham, Cary, Chapel Hill, Goldsboro, Apex, Sanford, Wake Forest |
| 920 | WI | USA | Green Bay, Appleton, Racine, Fond du Lac, Oshkosh, Sheboygan |
| 925 | CA | USA | Walnut Creek, Pleasanton, Concord, Livermore, Bishop Ranch, Danville, Antioch |
| 928 | AZ | USA | Yuma, Flagstaff, Prescott, Sedona, Bullhead City, Kingman, Lake Havasu City |
| 931 | TN | USA | Clarksville, Shelbyville, Cookeville, Columbia |
| 936 | TX | USA | Conroe, Nacogdoches, Huntsville, Lufkin, Madisonville |
| 937 | OH | USA | Dayton, Springfield, Bellefontaine, Beavercreek, Franklin |
| 940 | TX | USA | Wichita Falls, Denton, Gainesville |
| 941 | FL | USA | Sarasota, Bradenton, Venice, Port Charlotte, Punta Gorda |
| 947 | MI | USA | Overlay of 248 Area Code. |
| 949 | CA | USA | Irvine, Saddleback Valley, Newport Beach, Capistrano Valley, Laguna Beach |
| 951 | CA | USA | Riverside, Corona, Temecula, Arlington, Hemet, Moreno Valley, Murietta, Sun City, Elsinore |
| 952 | MN | USA | Bloomington, Burnsville, Eden Prairie, Minnetonka, Edina, St. Louis Park, Apple Valley |
| 954 | FL | USA | Fort Lauderdale, Hollywood, Pompano Beach, Deerfield Beach, Coral Springs |
| 956 | TX | USA | Brownsville, Laredo, McAllen, Harlingen, Edinburg |
| 970 | CO | USA | Fort Collins, Greeley, Grand Junction, Loveland, Durango, Vail |
| 971 | OR | USA | Overlay of 503 area code. |
| 972 | TX | USA | Grand Prairie, Addison, Irving, Richardson, Plano, Carrollton |
| 973 | NJ | USA | Newark, Morristown, Paterson, Passaic, Orange, Bloomfield, Caldwell, Whippany |
| 978 | MA | USA | Lowell, Lawrence, Billerica, Concord, Wilmington, Sudbury, Fitchburg, Peabody, Andover, Beverly, Danvers |
| 979 | TX | USA | Bryan, Lake Jackson, Freeport, Brenham, Bay City, El Campo |
| 980 | NC | USA | Overlay of 704 Area Code. |
| 985 | LA | USA | Houma, Slidell, Hammond, Morgan City, Mandeville, Covington, Thibodaux, Bogalusa, St. Charles |
| 989 | MI | USA | Saginaw, Bay City, Midland, Mount Pleasant |