| 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 |
|---|---|---|---|
| 302-290 | New Castle | Wilmington, DE | New Cingular Wireless PCS - DC |
| 302-292 | New Castle | Newark, DE | Verizon Delaware |
| 302-293 | New Castle | Wilmington, DE | Sprint Spectrum L.p. |
| 302-294 | New Castle | Newark, DE | Broadwing Communications |
| 302-295 | New Castle | Wilmington, DE | Broadwing Communications |
| 302-296 | Sussex | Rehoboth, DE | Cavalier Telephone (mid-atlantic) |
| 302-297 | Sussex | Millsboro, DE | Cavalier Telephone (mid-atlantic) |
| 302-298 | New Castle | Wilmington, DE | Tcg New Jersey - PA |
| 302-299 | New Castle | Wilmington, DE | Us Lec Of Pennsylvania Inc. |
| 302-300 | New Castle | Wilmington, DE | Cellco Partnership DBA Verizon Wireless |
| 302-303 | Sussex | Frankford, DE | Global Naps South |
| 302-304 | New Castle | Wilmington, DE | Cellco Partnership DBA Verizon Wireless |
| 302-305 | Kent | Harrington, DE | Global Naps South |
| 302-306 | Kent | Hartly, DE | Global Naps South |
| 302-307 | New Castle | Hockessin, DE | Level 3 Communications |
| 302-308 | New Castle | Wilmington, DE | Level 3 Communications |
| 302-309 | Sussex | Laurel, DE | Global Naps South |
| 302-312 | New Castle | Middletown, DE | Sprint Spectrum L.p. |
| 302-313 | Sussex | Lewes, DE | Level 3 Communications |
| 302-314 | New Castle | Middletown, DE | Level 3 Communications |
There are 525 prefixes, In the code area, the major cities are Dover, DE;Newark, DE;Wilmington, DE. The major city is Wilmington.