| District of Pennsylvania area codes: 484 | |
|---|---|
| Country | United States |
| State/Province | Pennsylvania |
| Major City | Philadelphia |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 484-324 | Chester | Paoli, PA | Level 3 Communications |
| 484-325 | Chester | Paoli, PA | Sprint Spectrum L.p. |
| 484-326 | Delaware | Swarthmore, PA | Sprint Spectrum L.p. |
| 484-327 | Chester | Paoli, PA | Cavalier Telephone (mid-atlantic) |
| 484-328 | Chester | Paoli, PA | Global Crossing Local Services-pa |
| 484-329 | Chester | Paoli, PA | Paetec Communications |
| 484-330 | Lehigh | Slatington, PA | Sprint Spectrum L.p. |
| 484-331 | Berks | Reading, PA | Broadwing Communications |
| 484-332 | Berks | Reading, PA | Cellco Partnership DBA Verizon Wireless |
| 484-333 | Berks | Reading, PA | Keystone Wireless |
| 484-334 | Berks | Reading, PA | Level 3 Communications |
| 484-335 | Berks | Reading, PA | Global Crossing Local Services-pa |
| 484-336 | Berks | Reading, PA | Cavalier Telephone (mid-atlantic) |
| 484-337 | Montgomery | Bryn Mawr, PA | Xo Communications Services Inc |
| 484-338 | Berks | Reading, PA | Verizon Pennsylvania |
| 484-339 | Berks | Reading, PA | Global Naps |
| 484-340 | Chester | Coatesville, PA | Telcove Of Eastern Pennsylvania |
| 484-341 | Chester | Chester Springs, PA | Global Crossing Local Services-pa |
| 484-342 | Montgomery | Conshohocken, PA | Cavalier Telephone Mid-atlantic |
| 484-343 | Montgomery | Bala Cynwyd, PA | New Cingular Wireless PCS - DC |
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.