Telephone Area 300
Left on the map, there are marked the US states that use prefixes beginning with 3XX.
Some areas are not shown on the map Besides, left on the map, there are marked Canada’s provinces that use prefixes beginning with 3XX.
The table below lists the states and cities that use these prefixes of phone numbers. If you have not found the required prefix in the table, use the search by the exact number.
Phone numbers +1-3AA-BBB-CCCC
| Major City | State | Prefix |
|---|---|---|
| Rockville | Maryland | +1301-SSSSSSS |
| Wilmington | Delaware | +1302-SSSSSSS |
| Denver | Colorado | +1303-SSSSSSS |
| Charleston | West Virginia | +1304-SSSSSSS |
| Miami | Florida | +1305-SSSSSSS |
| Regina Beach | Saskatchewan, Canada | +1306-SSSSSSS |
| Cheyenne | Wyoming | +1307-SSSSSSS |
| Grand Island | Nebraska | +1308-SSSSSSS |
| Peoria | Illinois | +1309-SSSSSSS |
| Los Angeles | California | +1310-SSSSSSS |
| Chicago | Illinois | +1312-SSSSSSS |
| Detroit | Michigan | +1313-SSSSSSS |
| Saint Louis | Missouri | +1314-SSSSSSS |
| Syracuse | New York | +1315-SSSSSSS |
| Wichita | Kansas | +1316-SSSSSSS |
| Indianapolis | Indiana | +1317-SSSSSSS |
| Shreveport | Louisiana | +1318-SSSSSSS |
| Cedar Rapids | Iowa | +1319-SSSSSSS |
| Saint Cloud | Minnesota | +1320-SSSSSSS |
| Melbourne | Florida | +1321-SSSSSSS |
| Los Angeles | California | +1323-SSSSSSS |
| Menard | Texas | +1325-SSSSSSS |
| Akron | Ohio | +1330-SSSSSSS |
| Elmhurst | Illinois | +1331-SSSSSSS |
| Montgomery | Alabama | +1334-SSSSSSS |
| Greensboro | North Carolina | +1336-SSSSSSS |
| Lafayette | Louisiana | +1337-SSSSSSS |
| Hingham | Massachusetts | +1339-SSSSSSS |
| Charlotte Amalie | Virgin Islands | +1340-SSSSSSS |
| Ridgewood | New York | +1347-SSSSSSS |
| Danvers | Massachusetts | +1351-SSSSSSS |
| Gainesville | Florida | +1352-SSSSSSS |
| Vancouver | Washington | +1360-SSSSSSS |
| Corpus Christi | Texas | +1361-SSSSSSS |
| Provo | Utah | +1385-SSSSSSS |
| Daytona Beach | Florida | +1386-SSSSSSS |
