| District of Pennsylvania area codes: 484 | |
|---|---|
| Country | United States |
| State/Province | Pennsylvania |
| Major City | Philadelphia |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 484-303 | Delaware | Cheyney, PA | Cavalier Telephone (mid-atlantic) |
| 484-304 | Berks | Topton, PA | Core Communications |
| 484-305 | Bucks | Upper Black Eddy, PA | Service Electric Telephone Company |
| 484-306 | Bucks | Riegelsville, PA | Cavalier Telephone (mid-atlantic) |
| 484-307 | Delaware | Cheyney, PA | Xo Communications Services Inc |
| 484-308 | Bucks | Riegelsville, PA | Service Electric Telephone Company |
| 484-309 | Bucks | Upper Black Eddy, PA | Cavalier Telephone (mid-atlantic) |
| 484-310 | Bucks | Riegelsville, PA | Global Naps |
| 484-312 | Bucks | Upper Black Eddy, PA | Telcove Of Eastern Pennsylvania |
| 484-313 | Delaware | Cheyney, PA | Netcarrier Telecom |
| 484-314 | Bucks | Riegelsville, PA | Telcove Of Eastern Pennsylvania |
| 484-315 | Delaware | Cheyney, PA | Global Crossing Local Services-pa |
| 484-316 | Bucks | Riegelsville, PA | Atx Telecommunications Services, Ltd |
| 484-317 | Berks | Mohnton, PA | Core Communications |
| 484-318 | Chester | Paoli, PA | Sprint Spectrum L.p. |
| 484-319 | Chester | W Chester, PA | Sprint Spectrum L.p. |
| 484-320 | Chester | Paoli, PA | Mci Worldcom Communications |
| 484-321 | Chester | Paoli, PA | Netcarrier Telecom |
| 484-322 | Montgomery | Norristown, PA | Verizon Pennsylvania |
| 484-323 | Chester | Paoli, PA | Broadwing Communications |
There are 673 prefixes, In the code area, the major cities are Allentown, PA;Bethlehem, PA;Chester, PA;Drexel Hil. The major city is Philadelphia.