| Callsign | KR4D |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2026-06-19 |
| Effective Date | 2026-06-19 |
| Expire Date | 2036-06-10 |
| Cancel Date | |
| Last Action Date | 2026-06-19 |
| End Date | 2036-06-10 |
| Available Date | 2038-06-11 |
| Applicant Type | I - Individual |
| Entity Name | Martins, Douglas J |
| Street Address / Locality | 197 Hummingbird Dr. Trenton, SC 29847 |
| County | Edgefield County |
| Zip Location | 33°42'14.9"N 81°50'50.2"W |
| Maidenhead | EM93bq |
| FRN | 0014738231 |
| Licensee ID/SGIN | L01123516 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | A - 2x1 |
| ULS/Geo Region | 4 / 4 / SC |
| Prev Callsign / Prev Class | AI4PV |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | 0012084109 |
| Phonetic weight / Morse weight | 9 / 46 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2006-06-10 | LIISS - License Issued |
| 2006-06-10 | VANGRT - Vanity Call Sign Assigned |
| 2009-04-02 | LIAUA - Administrative Update Applied |
| 2016-04-07 | LIREN - License Renewed |
| 2026-06-19 | LIREN - License Renewed |