Códigos telefónicos de EE.UU.

Estructura de los números de teléfono norteamericanos

El código regional siempre va seguido de 7 dígitos adicionales del número de teléfono real (a excepción de los números especiales). Las 3 primeras cifras pertenecen originalmente al proveedor de telecomunicaciones correspondiente. Sin embargo, no son los mismos en todo el país, sino que se reasignan dentro de cada prefijo. Con la introducción de la portabilidad del número, es decir, la transferencia de un número de teléfono existente a otro proveedor, esta asignación se ha diluido en gran medida. Si solicita un nuevo número de teléfono, normalmente puede elegir entre varios de estos números específicos de proveedor. En realidad, sólo se asignan libremente las 4 últimas cifras del número.

Mapa de los prefijos de EE.UU.

Asignación de los prefijos

Un prefijo no siempre tiene que corresponder a una sola ciudad. También puede aplicarse a una zona más amplia con varias ciudades. A la inversa, la zona urbana de Nueva York, por ejemplo, está dividida en varias áreas porque en ella vive un número especialmente elevado de personas. Especialmente en las aglomeraciones urbanas de rápido crecimiento, esto apenas es suficiente a lo largo del tiempo. Así, se asignan más códigos de área a una región poco a poco, pero no consecutivamente. Esta asignación de varios prefijos a un área se denomina "superposición". Comenzó en 1947 con 86 números. Ahora hay más de 450, 357 de ellos sólo en Estados Unidos. No hay códigos con un 0 o un 1 al principio. También se reservan varias combinaciones para números especiales.

Estos prefijos se asignan según el plan de numeración norteamericano. Planifican con años de antelación la asignación de números para toda Norteamérica, incluido Canadá y muchas islas del Caribe y el Pacífico.

Sin embargo, ni siquiera se puede hacer una clasificación geográfica aproximada a partir de las cifras. No existe un orden ascendente de oeste a este ni de norte a sur. Sólo la densamente poblada California tiene 40 prefijos que van del 209 al 951. El Distrito de Columbia sólo tiene dos prefijos (202 y 771).

Para reconocer la procedencia de un número de teléfono, se utilizan amplias listas que ya están programadas en la mayoría de los teléfonos. Esto indica automáticamente a la persona que llama de qué región procede la llamada.

Números de teléfono móvil irreconocibles

Al contrario que en la mayoría de los demás países, en EE.UU. no existen rangos de números individuales ni códigos de área específicos para la telefonía móvil. Por tanto, la persona que llama no sabe si lo hace a través de una conexión de red fija o de un teléfono móvil. Por supuesto, las conexiones a una red móvil también cuestan más en EE.UU. que dentro de la red fija clásica. Por tanto, el recargo por la conexión móvil corre a cargo de la persona que llama. En el pasado, esto podía costar rápidamente mucho dinero. Ahora, sin embargo, todos los proveedores estadounidenses ofrecen tarifas planas que a menudo no cuestan más que unos pocos dólares al mes. De este modo, los costes de las llamadas entrantes son razonables.

Lista de prefijos por estado y región

Alaska (AK)

Prefijo	Regiones
907	Anchorage, College, Fairbanks, Juneau, Ketchikan, Sitka

Alabama (AL)

Prefijo	Regiones
205, 659	Alabaster, Bessemer, Birmingham, Center Point, Homewood, Hoover, Mountain Brook, Tuscaloosa, Vestavia Hills
251	Mobile, Prichard
256	Anniston, Decatur, Florence, Gadsden, Huntsville, Madison
334	Auburn, Dothan, Enterprise, Montgomery, Opelika, Phenix City, Prattville, Selma

Arkansas (AR)

Prefijo	Regiones
479	Fayetteville, Fort Smith, Rogers, Russellville, Springdale
501	Benton, Conway, Hot Springs, Jacksonville, North Little Rock, Sherwood
870, 327	El Dorado, Jonesboro, Paragould, Pine Bluff, Texarkana, West Memphis

Arizona (AZ)

Prefijo	Regiones
520	Casa Grande, Catalina Foothills, Drexel Heights, Nogales, Oro Valley, Sierra Vista, Tucson
623, 480, 602	Phoenix metropolitan area
928	Bullhead City, Flagstaff, Fortuna Foothills, Kingman, Lake Havasu City, Prescott, Prescott Valley, Yuma

California (CA)

Prefijo	Regiones
209, 350	Atwater, Ceres, Lodi, Los Banos, Manteca, Merced, West Modesto, Stockton, Tracy, Turlock
323, 738, 213	Los Angeles, Bell, Cudahy, Florence-Graham, Maywood, Montebello, South Gate, West Hollywood, Westmont
310, 424	Beverly Hills, West Carson, Culver City, Gardena, Hawthorne, Inglewood, Lawndale, Lennox, Lomita, Lynwood, Manhattan Beach, Rancho Palos Verdes, Redondo Beach, Santa Monica, Torrance
408, 669	Campbell, Gilroy, Los Gatos, Milpitas, Morgan Hill, San Jose, Santa Clara, Saratoga, Sunnyvale
415, 628	Novato, San Anselmo, South San Francisco, San Rafael
442	La Quinta, Oceanside, Palm Desert, Palm Springs, Ridgecrest, San Marcos, Victorville, Vista, Apple Valley, Barstow, Brawley, Calexico, Carlsbad, Cathedral City, Coachella, El Centro, Encinitas, Escondido, Fallbrook, Hesperia, Indio
510, 341	Alameda, Berkeley, Castro Valley, El Cerrito, Fremont, Hayward, Newark, Oakland, Richmond, San Leandro, San Lorenzo, San Pablo, Union City
530, 837	Chico, Davis, Paradise, Redding, South Lake Tahoe, Woodland, Yuba City
559	Clovis, Fresno, Hanford, Madera, Porterville, Reedley, Tulare, Visalia
562	Bellflower, Cerritos, Downey, La Habra, La Mirada, Lakewood, Long Beach, Norwalk, Paramount, Pico Rivera, Seal Beach, South Whittier, West Whittier-Los Nietos, Whittier
619, 858	Chula Vista, Coronado, El Cajon, Imperial Beach, La Mesa, La Presa, Lemon Grove, National City, Rancho San Diego, San Diego, Poway, Santee, Spring Valley
626	Alhambra, Altadena, Arcadia, Azusa, Baldwin Park, West Covina, Duarte, South El Monte, Glendora, Hacienda Heights, La Puente, Monrovia, Monterey Park, South Pasadena, Rosemead, Rowland Heights, South San Gabriel, South San Jose Hills, Temple City, Valinda, Walnut, West Puente Valley
650	Belmont, Burlingame, Daly City, East Palo Alto, Foster City, Los Altos, Menlo Park, Millbrae, Mountain View, Pacifica, Palo Alto, Redwood City, San Bruno, San Carlos, San Mateo, South San Francisco
657, 714	Anaheim, Brea, Buena Park, Cypress, Fountain Valley, Fullerton, Garden Grove, Huntington Beach, Orange, Placentia, Santa Ana, Stanton, North Tustin, Westminster, Yorba Linda
661	Bakersfield, Delano, Lancaster, Oildale, Palmdale, Santa Clarita, Wasco
707, 369	Benicia, Eureka, Fairfield, Napa, Petaluma, Rohnert Park, Santa Rosa, Suisun, Vacaville, Vallejo, Windsor
747, 818	Agoura Hills, Burbank, Calabasas, North Glendale, La Cañada Flintridge, San Fernando
760	Apple Valley, Barstow, Brawley, Calexico, Carlsbad, Cathedral City, Coachella, El Centro, Encinitas, Escondido, Fallbrook, Hesperia, Indio, La Quinta, Oceanside, Palm Desert, Palm Springs, Ridgecrest, San Marcos, Victorville, Vista
805, 820	Atascadero, Camarillo, Paso Robles, Goleta, Lompoc, Moorpark, Orcutt, Oxnard, Port Hueneme, Ventura, San Luis Obispo, Santa Barbara, Santa Maria, Santa Paula, Simi Valley, Thousand Oaks
831	Hollister, Marina, Monterey, Salinas, Santa Cruz, Seaside, Watsonville
909, 840	Chino, Chino Hills, Claremont, Colton, Diamond Bar, Fontana, Highland, La Verne, Montclair, Ontario, Pomona, Rancho Cucamonga, Redlands, Rialto, San Bernardino, San Dimas, Upland, Yucaipa
916, 279	Arden-Arcade, Carmichael, Citrus Heights, Elk Grove, North Fair Oaks, Florin, Folsom, La Riviera, Laguna, North Highlands, Orangevale, Rancho Cordova, Rocklin, Rosemont, Roseville, West Sacramento
925	Antioch, Bay Point, Brentwood, Concord, Danville, Dublin, Lafayette, Livermore, Martinez, Oakley, Pittsburg, Pleasant Hill, Pleasanton, San Ramon, Walnut Creek
949	Aliso Viejo, Costa Mesa, Dana Point, Irvine, Laguna Beach, Laguna Hills, Laguna Niguel, Lake Forest, Mission Viejo, Newport Beach, Rancho Santa Margarita, San Clemente, San Juan Capistrano
951	Banning, Corona, Hemet, Moreno Valley, Murrieta, Norco, Perris, Riverside, Rubidoux, Temecula

Colorado (CO)

Prefijo	Regiones
303, 983, 720	Denver metropolitan area
719	Colorado Springs, Pueblo West, Security-Widefield
970	Fort Collins, Grand Junction, Greeley, Loveland

Connecticut (CT)

Prefijo	Regiones
203, 475	Bridgeport, Danbury, East Haven, Meriden, Milford, Naugatuck, New Haven, North Haven, Norwalk, Shelton, Stamford, Stratford, Trumbull, Waterbury, West Haven, Westport
860, 959	Bristol, Manchester, East Hartford, West Hartford, Middletown, New Britain, New London, Newington, Norwich, West Torrington, Wethersfield

District of Columbia (DC)

Prefijo	Regiones
202, 771	Washington

Delaware (DE)

Prefijo	Regiones
302	Dover, Newark, Wilmington

Florida (FL)

Prefijo	Regiones
239	Bonita Springs, Cape Coral, North Fort Myers, Golden Gate, Lehigh Acres, Naples
305, 786, 645	Aventura, Carol City, Coral Gables, Coral Terrace, Country Club, Cutler Ridge, Doral, Golden Glades, Hialeah, Homestead, Kendale Lakes, Kendall West, Key West, Leisure City, West Miami, North Miami Beach, Miami Lakes, Miramar, Norland, North Miami, Richmond West, Richmond Heights, South Miami Heights, Tamiami, West Little River, Westchester
321	Altamonte Springs, South Apopka, Casselberry, Kissimmee, West Melbourne, Merritt Island, Oak Ridge, Ocoee, Orlando, Oviedo, Palm Bay, Pine Hills, Rockledge, Sanford, Saint Cloud, Titusville, University Park, Wekiwa Springs, Winter Park, Winter Springs
352	Gainesville, Oakland Park, Ocala, Spring Hill
386	Daytona Beach, DeLand, Deltona, New Smyrna Beach, Ormond Beach, Palm Coast, Port Orange
407, 689	Altamonte Springs, South Apopka, Casselberry, Kissimmee, Oak Ridge, Ocoee, Orlando, Oviedo, Pine Hills, Sanford, Saint Cloud, University Park, Wekiwa Springs, Winter Park, Winter Springs
561, 728	Boca Del Mar, Boca Raton, Boynton Beach, Delray Beach, Jupiter, Lake Worth, Palm Beach, Riviera Beach, University Park, Wellington
727	Bayonet Point, Clearwater, Dunedin, Holiday, Largo, Lealman, Palm Harbor, Pinellas Park, Saint Petersburg, Tarpon Springs
754, 954	Coconut Creek, Cooper City, Coral Springs, Dania Beach, Davie, Deerfield Beach, Fort Lauderdale, Hallandale Beach, Hollywood, Lauderdale Lakes, Lauderhill, Margate, North Lauderdale, Pembroke Pines, Plantation, Pompano Beach, Sunrise, Tamarac, Weston
772	Fort Pierce South, Palm City, Port Saint Lucie, Vero Beach South
813, 656	Brandon, Citrus Park, Greater Northdale, Lake Magdalene, Land O' Lakes, Plant City, Tampa, Temple Terrace, Town 'n' Country
850, 448	Bellview, Brent, Ferry Pass, Fort Walton Beach, Panama City, West Pensacola, Tallahassee, Wright
863	Lakeland, Winter Haven
904, 324	Jacksonville, Jacksonville Beach, Lakeside
941	South Bradenton, North Port, Port Charlotte, Punta Gorda, Sarasota

Georgia (GA)

Prefijo	Regiones
229	Albany, Valdosta
478	Macon, Warner Robins
678, 770, 404	Metro Atlanta
706, 762	Athens, Augusta, Columbus, Dalton, La Grange, Martinez, Rome
912	Hinesville, Savannah, Statesboro

Hawaii (HI)

Prefijo	Regiones
808	Hilo, Honolulu, Kahului, Kailua-Kona, Kāne‘ohe, Mililani Town, Pearl City, Waimalu, Waipahu

Iowa (IA)

Prefijo	Regiones
319	Burlington, Cedar Falls, Cedar Rapids, Iowa City, Marion, Waterloo
515	Ames, Ankeny, West Des Moines, Fort Dodge, Urbandale
563	Bettendorf, Clinton, Davenport, Dubuque, Muscatine
641	Marshalltown, Mason City, Ottumwa
712	Council Bluffs, Sioux City

Idaho (ID)

Prefijo	Regiones
208, 986	Boise, Caldwell, Coeur d'Alene, Idaho Falls, Lewiston, Meridian, Moscow, Nampa, Pocatello, Twin Falls

Illinois (IL)

Prefijo	Regiones
217, 447	Champaign, Charleston, Danville, Decatur, Quincy, Springfield, Urbana
224, 847	Algonquin, Arlington Heights, Buffalo Grove, Carpentersville, Des Plaines, South Elgin, Elk Grove Village, Evanston, Glenview, Gurnee, Highland Park, Hoffman Estates, Lake Forest, Lake in the Hills, Libertyville, Morton Grove, Mount Prospect, Mundelein, Niles, North Chicago, Northbrook, Palatine, Park Ridge, Rolling Meadows, Round Lake Beach, Schaumburg, Skokie, Vernon Hills, Waukegan, Wheeling, Wilmette, Zion
309, 861	Bloomington, East Moline, East Peoria, Galesburg, Moline, Normal, Pekin, Peoria, Rock Island
312, 773	West Chicago
331, 630	Addison, North Aurora, Bartlett, Batavia, Bensenville, Bloomingdale, Bolingbrook, Carol Stream, Darien, Downers Grove, Elmhurst, Glen Ellyn, Glendale Heights, Hanover Park, Lisle, Lombard, Naperville, Roselle, Saint Charles, Streamwood, Villa Park, West Chicago, Westmont, Wheaton, Woodridge
618, 730	East Alton, Belleville, Carbondale, Collinsville, East Saint Louis, Edwardsville, Granite City, O'Fallon
708, 464	Bellwood, Berwyn, Blue Island, Burbank, Calumet City, Chicago Heights, Cicero, Dolton, Elmwood Park, Evergreen Park, Harvey, Lansing, Maywood, Melrose Park, Oak Forest, Oak Lawn, Oak Park, Orland Park, Park Forest, South Holland, Tinley Park
779, 815	Belvidere, Crystal Lake, DeKalb, Freeport, Joliet, Kankakee, Loves Park, Machesney Park, McHenry, Rockford, Romeoville, Woodstock

Indiana (IN)

Prefijo	Regiones
219	East Chicago, Gary, Hammond, Highland, Hobart, LaPorte, Merrillville, Michigan City, Munster, Portage, Schererville, Valparaiso
260	Fort Wayne
317, 463	Carmel, Fishers, Greenwood, Indianapolis, Lawrence, Noblesville
574	Elkhart, Goshen, Granger, Mishawaka, South Bend
765	Anderson, Kokomo, West Lafayette, Marion, Muncie, Richmond
812, 930	Bloomington, Clarksville, Columbus, Evansville, Jeffersonville, New Albany, Terre Haute

Kansas (KS)

Prefijo	Regiones
316	Wichita
620	Dodge City, Emporia, Garden City, Hutchinson
785	Hays, Lawrence, Manhattan, Salina, Topeka
913	Kansas City, Leavenworth, Leawood, Lenexa, Olathe, Overland Park, Prairie Village, Shawnee

Kentucky (KY)

Prefijo	Regiones
270, 364	Bowling Green, Elizabethtown, Henderson, Hopkinsville, Owensboro, Paducah, Radcliff
502	Frankfort, Louisville
606	Ashland
859	Covington, Florence, Lexington, Richmond

Louisiana (LA)

Prefijo	Regiones
225	Baton Rouge
318, 457	Alexandria, Bossier City, West Monroe, Ruston, Shreveport
337	Lafayette, Lake Charles, New Iberia, Opelousas, Sulphur
504	Chalmette, Harvey, Kenner, Marrero, Metairie, New Orleans, Terrytown
985	Houma, Laplace, Slidell

Massachusetts (MA)

Prefijo	Regiones
339, 781	Arlington, Braintree, Burlington, Dedham, Lexington, Lynn, Malden, Marblehead, Medford, Melrose, Needham, Norwood, Randolph, Reading, Revere, Saugus, Stoneham, Wakefield, Waltham, Wellesley, Weymouth, Winchester, Woburn
351, 978	Beverly, Chelmsford, Danvers, Fitchburg, Gardner, Gloucester, Haverhill, Lawrence, Leominster, Lowell, Methuen, South Peabody, Salem, Wilmington
413	Agawam, North Chicopee, Holyoke, Northampton, Pittsfield, West Springfield, Westfield
508, 774	Attleboro, Barnstable, Brockton, Fall River, Framingham, Franklin, Marlborough, Milford, New Bedford, Taunton, Worcester
617, 857	Belmont, South Boston, Brookline, Cambridge, Chelsea, Everett, Milton, Newton, Quincy, Somerville, Watertown

Maryland (MD)

Prefijo	Regiones
240, 301, 227	Aspen Hill, North Bethesda, Bowie, Chillum, Clinton, College Park, Cumberland, Fairland, Fort Washington, Frederick, Gaithersburg, Germantown, Greenbelt, Hagerstown, Landover, Montgomery Village, South Laurel, North Potomac, Olney, Potomac, Rockville, Silver Spring, Saint Charles, Suitland, Waldorf, White Oak
410, 443, 667	Annapolis, Arbutus, Arnold, Baltimore, Bel Air North, Bel Air South, Carney, Catonsville, Columbia, Crofton, Dundalk, Edgewood, Eldersburg, West Elkridge, Ellicott City, Essex, Glen Burnie, Lochearn, Middle River, Milford Mill, Odenton, Parkville, Perry Hall, Pikesville, Randallstown, Reisterstown, Salisbury, Severn, Severna Park, South Gate, Towson

Maine (ME)

Prefijo	Regiones
207	Auburn, Augusta, Bangor, Biddeford, Brunswick, Lewiston, South Portland

Michigan (MI)

Prefijo	Regiones
231	Muskegon, Norton Shores, Shelby
248, 947	West Bloomfield Township, Farmington Hills, Ferndale, Madison Heights, Novi, Oak Park, Pontiac, Rochester Hills, Royal Oak, Southfield, Troy, Waterford
269	Battle Creek, Kalamazoo, Portage
313, 679	Allen Park, Dearborn, Dearborn Heights, Detroit, Hamtramck, Inkster, Lincoln Park, Redford, Taylor
517	Adrian, Clinton, East Lansing, Jackson, Lansing, Okemos
586	Clinton, Eastpointe, Roseville, Shelby, Saint Clair Shores, Sterling Heights, Warren
616	Forest Hills, Grand Rapids, Holland, Kentwood, Walker, WY
734	Ann Arbor, Canton, Garden City, Livonia, South Monroe, Plymouth, Romulus, Southgate, Westland, Wyandotte, Ypsilanti
810	Burton, Flint, Port Huron
989	Bay City, Midland, Mount Pleasant, Saginaw

Minnesota (MN)

Prefijo	Regiones
218	Andover, Duluth, Moorhead
320	Saint Cloud
507, 924	Austin, Faribault, North Mankato, Owatonna, Rochester, Winona
612	Crystal, Golden Valley, Minneapolis, Richfield, Saint Louis Park
651	Apple Valley, Cottage Grove, Eagan, Inver Grove Heights, Lakeville, Maplewood, New Brighton, Oakdale, Roseville, Shoreview, South Saint Paul, Saint Paul, White Bear Lake, Woodbury
763	Blaine, Brooklyn Center, Brooklyn Park, Champlin, West Coon Rapids, Fridley, Maple Grove, New Hope, Plymouth
952	Bloomington, Burnsville, Chanhassen, Eden Prairie, Edina, Minnetonka, Savage, Shakopee

Missouri (MO)

Prefijo	Regiones
314, 557	Kirkwood, Maryland Heights, Mehlville, Oakville, Spanish Lake, St. Louis, University City, Webster Groves, Affton, Ferguson, Florissant, Hazelwood
417	Joplin, Springfield
573, 235	Cape Girardeau, Columbia, Jefferson City
636	Ballwin, Chesterfield, O'Fallon, Saint Charles, Saint Peters, Wildwood
660	Sedalia
816, 975	Belton, Blue Springs, Gladstone, Grandview, Independence, Kansas City, Lee's Summit, Liberty, Raytown, Saint Joseph

Mississippi (MS)

Prefijo	Regiones
228	Biloxi, West Gulfport, Pascagoula
601, 769	Clinton, West Hattiesburg, Jackson, Meridian, Pearl, Ridgeland, Vicksburg
662	Clarksdale, Columbus, Greenville, Olive Branch, Southaven, Starkville, Tupelo

Montana (MT)

Prefijo	Regiones
406	Billings, Bozeman, Butte, Great Falls, Helena, Missoula

North Carolina (NC)

Prefijo	Regiones
252	Greenville, Havelock, Kinston, New Bern, Rocky Mount, Wilson
336, 743	Asheboro, Burlington, Greensboro, High Point, Winston-Salem
704, 980	Charlotte, Concord, South Gastonia, Huntersville, Kannapolis, Matthews, Monroe, Salisbury, Statesville
828	Asheville, Hickory
910, 472	Fayetteville, Fort Bragg, Jacksonville, Lumberton, Wilmington
919, 984	Apex, Cary, Chapel Hill, Durham, Goldsboro, West Raleigh, Sanford

North Dakota (ND)

Prefijo	Regiones
701	Bismarck, West Fargo, Grand Forks, Minot

Nebraska (NE)

Prefijo	Regiones
308	Grand Island, Kearney, North Platte
402, 531	Bellevue, Columbus, Fremont, Hastings, Lincoln, Norfolk, Omaha

New Hampshire (NH)

Prefijo	Regiones
603	East Concord, Derry, Dover, Keene, Manchester, Nashua, Portsmouth, Rochester

New Jersey (NJ)

Prefijo	Regiones
201, 551	Bayonne, Bergenfield, Cliffside Park, Englewood, Fair Lawn, Fort Lee, Hackensack, Hoboken, Jersey City, Kearny, North Bergen, Paramus, Ridgewood, Teaneck, Union City, West New York
609, 640	Atlantic City, Ewing, Trenton, Willingboro
732, 848	Carteret, East Brunswick, Edison, Lakewood, West Long Branch, New Brunswick, North Plainfield, South Old Bridge, Perth Amboy, Rahway, Sayreville, Somerset, Toms River
856	Bridgeton, Camden, Cherry Hill, Millville, Pennsauken, Vineland, Willingboro
862	Belleville, Bloomfield, Clifton, East Orange, Garfield, Hillside, Irvington, Kearny, Livingston, Lodi, Maplewood, Montclair, Morristown, Newark, Nutley, West Orange, Passaic, Paterson, Wayne, West Milford
908	Cranford, Elizabeth, Hillside, Linden, South Plainfield, Roselle, Scotch Plains, Summit, Union City, Westfield
973	Belleville, Bloomfield, Clifton, East Orange, Garfield, Irvington, Livingston, Lodi, Maplewood, Montclair, Morristown, Newark, Nutley, West Orange, Passaic, Paterson, Wayne, West Milford

New Mexico (NM)

Prefijo	Regiones
505	Albuquerque, Farmington, Gallup, Rio Rancho, Santa Fe, South Valley
575	Alamogordo, Carlsbad, Clovis, Hobbs, Las Cruces, Roswell

Nevada (NV)

Prefijo	Regiones
702, 725	Henderson, North Las Vegas, Paradise, Spring Valley, Sunrise Manor, Winchester
775	Carson City, Pahrump, Reno, Sparks

New York (NY)

Prefijo	Regiones
212, 332, 646	New York City
315, 680	Auburn, Rome, Syracuse, Utica, Watertown
347, 718, 929	The Bronx, Brooklyn, New York City, Borough of Queens, Staten Island
516, 363	Baldwin, East Meadow, Elmont, Franklin Square, Freeport, Garden City, Glen Cove, West Hempstead, Hicksville, Levittown, Long Beach, North Massapequa, North Merrick, North Bellmore, Oceanside, Plainview, Rockville Centre, Uniondale, Valley Stream
518, 838	West Albany, Rotterdam, Saratoga Springs, Schenectady, Troy
585	Brighton, Irondequoit, Rochester
607	Binghamton, Elmira, Ithaca
631, 934	North Bay Shore, Brentwood, Centereach, Central Islip, Commack, Copiague, Coram, Deer Park, Dix Hills, East Northport, East Patchogue, Hauppauge, Holbrook, Huntington Station, West Islip, North Lindenhurst, Medford, Ronkonkoma, Selden, Shirley, Smithtown, West Babylon
716, 624	Buffalo, Cheektowaga, Jamestown, South Lockport, Niagara Falls, North Tonawanda, Tonawanda, West Seneca
845, 329	Kingston, Middletown, New City, Newburgh, Poughkeepsie, Spring Valley
914	Harrison, Mount Vernon, New Rochelle, Ossining, Peekskill, Port Chester, White Plains, Yonkers
917	The Bronx, Brooklyn, New York City, Borough of Queens, Staten Island

Ohio (OH)

Prefijo	Regiones
216	Brook Park, East Cleveland, Cleveland Heights, South Euclid, Garfield Heights, Lakewood, Maple Heights, Parma, Shaker Heights
220, 740	Athens, Chillicothe, DE, Lancaster, Marion, Newark, Portsmouth, Zanesville
234, 330	Akron, Alliance, Austintown, Barberton, Boardman, Brunswick, North Canton, Cuyahoga Falls, Green, Hudson, Kent, Massillon, Medina, Niles, Stow, Warren, Wooster, Youngstown
419, 567	Ashland, Bowling Green, Findlay, Lima, Mansfield, Sandusky, Toledo
440	Ashtabula, Eastlake, Elyria, Lorain, Mentor, North Olmsted, North Ridgeville, North Royalton, Parma, Parma Heights, Rocky River, Solon, Strongsville, Westlake, Willoughby
513, 283	Cincinnati, Fairfield, Hamilton, Mason, Middletown, Norwood, Oxford
614, 380	Columbus, Dublin, Gahanna, Grove City, Hilliard, Reynoldsburg, Upper Arlington, Westerville
937, 326	Beavercreek, Centerville, Dayton, Fairborn, Huber Heights, Kettering, Piqua, Riverside, Sidney, Springfield, Trotwood, Troy, Xenia

Oklahoma (OK)

Prefijo	Regiones
405, 572	Bethany, Del City, Edmond, Midwest City, Moore, Norman, Oklahoma City, Shawnee, Stillwater, Yukon
539, 918	Bartlesville, Broken Arrow, Muskogee, Tulsa
580	Altus, Ardmore, Duncan, Enid, Lawton, Ponca City

Oregon (OR)

Prefijo	Regiones
458, 541	Albany, North Bend, Corvallis, Gresham, Grants Pass, Medford, Roseburg North, Springfield
503, 971	Aloha, Beaverton, Gresham, Hillsboro, Keizer, Lake Oswego, McMinnville, Milwaukie, Oregon City, Portland, Salem, Tigard, Tualatin, West Linn, Woodburn

Pennsylvania (PA)

Prefijo	Regiones
215, 445, 267	Levittown, Philadelphia
272, 570	Back Mountain, Hazleton, Scranton, Wilkes-Barre, Williamsport
412	Bethel Park, McKeesport, Mount Lebanon, Monroeville, Penn Hills, Pittsburgh, Plum, Upper Saint Clair, West Mifflin
484, 835, 610	Allentown, Bethlehem, West Chester, Drexel Hill, Easton, Norristown, Pottstown, Radnor, Reading, Springfield
717, 223	Harrisburg, Lancaster, Lebanon, York
724	Monroeville, New Castle, Plum, Upper Saint Clair
814, 582	Altoona, Erie, Johnstown, State College
878	Bethel Park, McKeesport, Mount Lebanon, Monroeville, New Castle, Penn Hills, Pittsburgh, Plum, Upper Saint Clair, West Mifflin

Rhode Island (RI)

Prefijo	Regiones
401	Bristol, Cranston, East Providence, Newport East, North Providence, Pawtucket, Providence, West Warwick, Woonsocket

South Carolina (SC)

Prefijo	Regiones
803, 839	Aiken, West Columbia, Rock Hill, Saint Andrews, Sumter
843, 854	North Charleston, Florence, Goose Creek, Hilton Head Island, Mount Pleasant, North Myrtle Beach, Summerville
864, 821	Anderson, Greenville, Greenwood, Spartanburg, Taylors, Wade Hampton

South Dakota (SD)

Prefijo	Regiones
605	Aberdeen, Pierre, Rapid City, Sioux Falls, Watertown

Tennessee (TN)

Prefijo	Regiones
423	Bristol, East Chattanooga, South Cleveland, East Ridge, Johnson City, Kingsport, Morristown
615, 629	Brentwood, Franklin, Gallatin, Hendersonville, Lebanon, Murfreesboro, Nashville, Smyrna
731	Jackson
865	Knoxville, Maryville, Oak Ridge
901	Bartlett, Collierville, Germantown, Memphis
931	Clarksville, Columbia, Cookeville

Texas (TX)

Prefijo	Regiones
210, 726	San Antonio
254	Copperas Cove, Fort Hood, Killeen, Temple, Waco
281, 346, 713, 832	Alvin, Atascocita, Baytown, Channelview, Cloverleaf, Deer Park, Friendswood, South Houston, La Porte, League City, Mission Bend, Missouri City, Pasadena, Pearland, Rosenberg, Spring, Sugar Land, The Woodlands
325	Abilene, San Angelo
361	Corpus Christi, Kingsville, Victoria
409	Beaumont, Galveston, Port Arthur, Texas City
432	Big Spring, Midland, West Odessa
469, 945, 214	Dallas metropolitan area
512, 737	Austin, Cedar Park, Georgetown, Round Rock, San Marcos
682, 817	Arlington, Bedford, Benbrook, Burleson, Cleburne, Euless, Fort Worth, Grapevine, Haltom City, Hurst, Keller, Mansfield, North Richland Hills, Southlake, Watauga
806	Amarillo, Lubbock, Plainview
830	Del Rio, Eagle Pass, Kerrville, New Braunfels, Seguin
903	Corsicana, Denison, Greenville, Longview, Marshall, Paris, Sherman, Texarkana, Tyler
915	El Paso, Socorro
936	Conroe, Huntsville, Lufkin, Nacogdoches
940	Denton, Lewisville, Wichita Falls
956	Brownsville, Edinburg, Harlingen, Laredo, McAllen, Mission, Pharr, San Benito, San Juan, Weslaco
972	Allen, Carrollton, Cedar Hill, Coppell, Dallas, DeSoto, Duncanville, Farmers Branch, Flower Mound, Frisco, Garland, Grand Prairie, Irving, Lancaster, Lewisville, McKinney, Mesquite, Plano, Richardson, Rowlett, The Colony, University Park, Waxahachie
979	Bryan, College Station, Lake Jackson

Utah (UT)

Prefijo	Regiones
385, 801	American Fork, West Bountiful, Clearfield, Cottonwood Heights, Draper, East Millcreek, Kaysville, Kearns, Layton, Magna, Midvale, Millcreek, Murray, South Ogden, Orem, Pleasant Grove, Provo, Riverton, Roy, Salt Lake City, Sandy City, South Jordan, South Salt Lake, Spanish Fork, Springville, Taylorsville, West Jordan, West Valley City
435	Cedar City, North Logan, Saint George, Tooele

Virginia (VA)

Prefijo	Regiones
276	Richmond
434	Charlottesville, Danville, West Lynchburg
540, 826	Blacksburg, Cave Spring, Harrisonburg, Roanoke, Salem, Staunton, Winchester
571, 703	Alexandria, Annandale, Arlington, Burke, Centreville, Chantilly, Dale City, Fairfax, Franconia, Groveton, Herndon, Lake Ridge, Leesburg, Manassas, McLean, Mount Vernon, Oakton, Reston, West Springfield
757, 948	Chesapeake, Hampton, Newport News, Norfolk, Portsmouth, Suffolk, Virginia Beach
804, 686	Hopewell, Mechanicsville, Petersburg, Richmond, Tuckahoe

Vermont (VT)

Prefijo	Regiones
802	South Burlington, Montpelier

Washington (WA)

Prefijo	Regiones
206	Bainbridge Island, Burien, Des Moines, Mercer Island, Seattle, Shoreline, White Center
253	Auburn, East Hill-Meridian, Federal Way, Lakewood, Parkland, Puyallup, South Hill, Spanaway, Tacoma, University Place
360, 564	Bellingham, Bremerton, Lacey, Longview, Marysville, Mount Vernon, Olympia, Vancouver
425	Bellevue, Bothell, Fairwood, Cottage Lake, Edmonds, Everett, Inglewood-Finn Hill, Kirkland, Lynnwood, Mountlake Terrace, North Creek, Redmond, Renton, City of Sammamish
509	Kennewick, Opportunity, Pasco, Pullman, West Richland, Spokane, Walla Walla, Wenatchee, Yakima

Wisconsin (WI)

Prefijo	Regiones
262	Brookfield, Caledonia, Kenosha, Menomonee Falls, Mequon, Muskego, New Berlin, Racine, Waukesha, West Bend
414	Franklin, Greenfield, South Milwaukee, Oak Creek, Wauwatosa, West Allis
608, 353	Beloit, Fitchburg, Janesville, North La Crosse, Madison, Sun Prairie
715	Eau Claire, Stevens Point, Superior, Wausau
920, 274	Appleton, De Pere, North Fond du Lac, Green Bay, Manitowoc, Neenah, Oshkosh, Sheboygan, Watertown

West Virginia (WV)

Prefijo	Regiones
304, 681	South Charleston, Huntington, Morgantown, Parkersburg, Weirton, Wheeling

Wyoming (WY)

Prefijo	Regiones
307	Casper, Cheyenne, Gillette, Laramie