| District of Pennsylvania area codes: 484 | |
|---|---|
| Country | United States |
| State/Province | Pennsylvania |
| Major City | Philadelphia |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 484-470 | Delaware | Swarthmore, PA | Netcarrier Telecom |
| 484-471 | Delaware | Swarthmore, PA | Cavalier Telephone (mid-atlantic) |
| 484-472 | Philadelphia | Philadelphia, PA | Global Crossing Local Services-pa |
| 484-474 | Delaware | Swarthmore, PA | Rcn Telecom Service Of Pennsylvania |
| 484-475 | Philadelphia | Philadelphia, PA | Broadwing Communications |
| 484-476 | Montgomery | Haverford, PA | Xo Communications Services Inc |
| 484-477 | Philadelphia | Philadelphia, PA | Level 3 Communications |
| 484-478 | Delaware | Swarthmore, PA | Rcn Telecom Service Of Pennsylvania |
| 484-479 | Philadelphia | Philadelphia, PA | Paetec Communications |
| 484-480 | Delaware | Chester, PA | Netcarrier Telecom |
| 484-482 | Philadelphia | Philadelphia, PA | Paetec Communications |
| 484-483 | Delaware | Chester, PA | Level 3 Communications |
| 484-485 | Delaware | Chester, PA | Rcn Telecom Service Of Pennsylvania |
| 484-486 | Delaware | Chester, PA | Cavalier Telephone (mid-atlantic) |
| 484-487 | Delaware | Chester, PA | Rcn Telecom Service Of Pennsylvania |
| 484-488 | Lehigh | Catasauqua, PA | Tcg New Jersey |
| 484-489 | Philadelphia | Philadelphia, PA | Global Crossing Local Services-pa |
| 484-490 | Philadelphia | Philadelphia, PA | Us Lec Of Pennsylvania |
| 484-491 | Berks | Oley, PA | Core Communications |
| 484-492 | Delaware | Glenolden, PA | Cavalier Telephone (mid-atlantic) |
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.