| Callsign | K4BDU |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2026-04-08 |
| Effective Date | 2026-04-08 |
| Expire Date | 2036-05-24 |
| Cancel Date | |
| Last Action Date | 2026-04-08 |
| End Date | 2036-05-24 |
| Available Date | 2038-05-25 |
| Applicant Type | I - Individual |
| Entity Name | St John, James R |
| Street Address / Locality | 3316 N Woodridge Rd Mountain Brook, AL 35223 |
| County | Jefferson County |
| Zip Location | 33°29'17.3"N 86°44'05.4"W |
| Maidenhead | EM63pl |
| FRN | 0022837827 |
| Licensee ID/SGIN | L01949817 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / AL |
| Prev Callsign / Prev Class | KM4LBK |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 11 / 58 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2016-05-24 | LIISS - License Issued |
| 2016-05-24 | VANGRT - Vanity Call Sign Assigned |
| 2019-01-01 | LIAUA - Administrative Update Applied |
| 2026-04-08 | LIREN - License Renewed |