| Callsign | W4SL |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2020-04-24 |
| Effective Date | 2020-04-24 |
| Expire Date | 2030-07-20 |
| Cancel Date | |
| Last Action Date | 2025-05-20 |
| End Date | 2030-07-20 |
| Available Date | 2032-07-21 |
| Applicant Type | B - Amateur Club |
| Entity Name | SOUTHEASTERN UNDERGROUND RADIO FELLOWSHIP |
| Street Address / Locality | PO Box 422261 ATLANTA, GA 30342 |
| County | Fulton County |
| Zip Location | 33°53'03.7"N 84°22'29.9"W |
| Maidenhead | EM73tv |
| FRN | 0019985407 |
| Licensee ID/SGIN | L01579715 / 000 |
| Licensee Class | |
| Callsign Group | A - 1x2 |
| ULS/Geo Region | 4 / 4 / GA |
| Prev Callsign / Prev Class | KJ4WFN |
| Next Callsign | |
| Trustee Callsign / Trustee Name | W4TI TURNER, CHASE P |
| Vanity Type | F - By List (Club) |
| ULS File Number | 0005632449 |
| Phonetic weight / Morse weight | 9 / 46 |