| District of Delaware area codes: 302 | |
|---|---|
| Country | United States |
| State/Province | Delaware |
| Major City | Wilmington |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 302-335 | Kent | Frederica, DE | Verizon Delaware |
| 302-336 | Kent | Dover, DE | Netcarrier Telecom |
| 302-337 | Sussex | Bridgeville, DE | Verizon Delaware |
| 302-338 | New Castle | Newark, DE | Xo Delaware |
| 302-339 | Sussex | Georgetown, DE | Omnipoint Communications Enterprises, L.p. |
| 302-340 | New Castle | Bear, DE | Xo Delaware |
| 302-341 | New Castle | Newark, DE | Xo Delaware |
| 302-342 | Kent | Dover, DE | Broadwing Communications |
| 302-343 | Kent | Hartly, DE | Cavalier Telephone (mid-atlantic) |
| 302-344 | Sussex | Georgetown, DE | Sprint Spectrum L.p. |
| 302-345 | New Castle | Wilmington, DE | Omnipoint Communications Enterprises, L.p. |
| 302-346 | Kent | Dover, DE | Cavalier Telephone (mid-atlantic) |
| 302-347 | Sussex | Georgetown, DE | Xo Delaware |
| 302-348 | Sussex | Georgetown, DE | Xo Delaware |
| 302-349 | Sussex | Greenwood, DE | Verizon Delaware |
| 302-350 | Kent | Dover, DE | Redi-call Communications Co |
| 302-351 | New Castle | Wilmington, DE | Paetec Communications |
| 302-352 | New Castle | Hockessin, DE | Paetec Communications |
| 302-353 | New Castle | Wilmington, DE | Verizon Delaware |
| 302-354 | New Castle | Wilmington, DE | Cellco Partnership DBA Verizon Wireless |
There are 525 prefixes, In the code area, the major cities are Dover, DE;Newark, DE;Wilmington, DE. The major city is Wilmington.