| Callsign | KR4OBT |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-08-04 |
| Effective Date | 2026-08-04 |
| Expire Date | 2036-08-04 |
| Cancel Date | |
| Last Action Date | 2026-08-04 |
| End Date | 2036-08-04 |
| Available Date | 2038-08-05 |
| Applicant Type | I - Individual |
| Entity Name | Drumond Vianna, Matheus |
| Street Address / Locality | 1460 NW 3PL Gainesville, FL 32603 |
| County | Alachua County |
| Zip Location | 29°39'24.2"N 82°20'51.0"W |
| Maidenhead | EL89tp |
| FRN | 0038696290 |
| Licensee ID/SGIN | L03070586 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 13 / 68 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-08-04 | SYSGRT - New Systematic Call Sign Assigned |
| 2026-08-04 | LIISS - License Issued |