| Callsign | KR4MIX |
|---|---|
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 2026-05-20 |
| Effective Date | 2026-07-06 |
| Expire Date | 2036-05-20 |
| Cancel Date | 2026-07-31 |
| Last Action Date | 2026-07-31 |
| End Date | 2026-07-31 |
| Available Date | 2028-08-01 |
| Applicant Type | I - Individual |
| Entity Name | Williamson, Matthew T |
| Street Address / Locality | 981 Whisper Lake Dr Winter Haven, FL 338801761 |
| County | Polk County |
| Zip Location | 27°58'44.6"N 81°46'47.8"W |
| Maidenhead | EL97cx |
| FRN | 0036329050 |
| Licensee ID/SGIN | L02875479 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | T - Technician |
| Next Callsign | K4MIX |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0012102684 |
| Phonetic weight / Morse weight | 13 / 66 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-05-20 | SYSGRT - New Systematic Call Sign Assigned |
| 2026-05-20 | LIISS - License Issued |
| 2026-07-06 | LIMOD - License Modified |
| 2026-07-31 | LICAN - License Canceled |
FCC comments
| 2026-07-31 | Issued vanity call sign. |