Amateur Radio Callsigns in ZIP Code: 78403
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| W5LEX | South Texas Amateur Radio Club | CORPUS CHRISTI | TX | United States |
| N5CRP | South Texas Amateur Radio Club Inc. | Corpus Christi | TX | United States |
| KF5GJJ | Chanterie, Robert S | Corpus Christi | TX | United States |
| KF5YGU | Lambert, Julie S | Corpus Christi | TX | United States |
| KF5ZBA | Radtke, Edward A | Corpus Christi | TX | United States |
| K5BYC | Bay Yacht Club | Corpus Christi | TX | United States |