| Callsign | KR4OX |
|---|---|
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2014-01-02 |
| Effective Date | 2014-01-02 |
| Expire Date | 2024-03-22 |
| Cancel Date | 2026-03-24 |
| Last Action Date | 2026-03-24 |
| End Date | 2024-03-22 |
| Available Date | 2026-04-24 |
| Applicant Type | I - Individual |
| Entity Name | UNDERWOOD, CHARLES R |
| Street Address / Locality | 3904 SEWELL MILL RD MARIETTA, GA 300625808 |
| County | Cobb County |
| Zip Location | 34°00'23.4"N 84°28'22.7"W |
| Maidenhead | EM74sa |
| FRN | 0009577461 |
| Licensee ID/SGIN | L00801358 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | B - 2x2 |
| ULS/Geo Region | 4 / 4 / GA |
| Prev Callsign / Prev Class | KD4HMG A - Advanced |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0006078968 |
| Phonetic weight / Morse weight | 11 / 64 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2004-02-03 | LIREN - License Renewed |
| 2004-02-03 | LIREN - License Renewed |
| 2011-11-16 | LIMOD - License Modified |
| 2012-01-12 | LIAUA - Administrative Update Applied |
| 2014-01-02 | LIREN - License Renewed |
| 2026-03-24 | LIEXP - License Expired |