Hai bisogno del prefisso per cinquanta stati?

Alabama (205), (251), (256), (334), (938)

Alaska (907)

Arizona (480), (520), (602), (623), (928)

Arkansas (479), (501), (870)

California (209), (213), (310), (323), (408), (415), (510), (530), (559), (562), (619), (626), ( 650), (661), (707), (714), (760), (805), (818), (831), (858), (909), (916), (925), (949) , (951)

Colorado (303), (719), (720), (970)

Connecticut (203), (860)

Delaware (302)

Florida (239), (305), (321), (352), (386), (407), (561), (727), (772), (813), (850), (904), ( 941)

Georgia (229), (404), (478), (678), (706), (762), (912)

Hawaii (808)

Idaho (208)

Illinois (217), (309), (312), (618), (708), (773), (815)

Indiana (219), (317), (574), (765), (812)

Iowa (319), (515), (712)

Kansas (316), (620), (785), (913)

Kentucky (270), (337), (502), (606), (859)

Louisiana (225), (318), (337), (504), (985)

Maine (207)

Maryland (240), (301), (410), (443), (571)

Massachusetts (339), (413), (508), (617), (774), (781), (857), (978)

Michigan (231), (248), (269), (313), (517), (586), (616), (810), (906), (989)

Minnesota (218), (320), (507), (612), (651), (763), (952)

Mississippi (228), (601), (662)

Missouri (314), (417), (573), (636), (660), (816)

Montana (406)

Nebraska (308), (402)

Nevada (702), (775)

New Hampshire (603)

New Jersey (201), (609), (732), (848), (856), (908), (973)

Nuovo Messico (505)

New York (212), (315), (516), (518), (585), (607), (631), (646), (716), (718), (845), (914)

Carolina del Nord (252), (336), (704), (828), (910), (919), (980)

Dakota del Nord (701)

Ohio (216), (330), (419), (440), (513), (614), (740), (937)

Oklahoma (405), (580), (918)

Oregon (503), (541), (971)

Pennsylvania (215), (267), (412), (484), (570), (610), (717), (724), (814)

Rhode Island (401)

Carolina del Sud (803), (843)

Dakota del Sud (605)

Tennessee (423), (615), (731), (865), (901), (931)

Texas (210), (254), (325), (361), (409), (430), (432), (469), (512), (713), (737), (806), ( 817), (830), (903), (915), (936), (940), (956), (972), (979)

Utah (385), (435), (801)

Vermont (802)

Virginia (276), (434), (540), (703), (757), (804)

Washington (206), (253), (360), (425), (509), (984)

Virginia Occidentale (304)

Wisconsin (262), (414), (608), (715), (920)

Wyoming (307)