| Callsign | KF0WYU |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2017-11-17 |
| Effective Date | 2026-04-10 |
| Expire Date | 2027-11-17 |
| Cancel Date | |
| Last Action Date | 2026-04-10 |
| End Date | 2027-11-17 |
| Available Date | 2029-11-18 |
| Applicant Type | I - Individual |
| Entity Name | UNDERWOOD, WARREN W |
| Street Address / Locality | 3612 WIND CHIME LANE SAINT CHARLES, MO 63301 |
| County | St. Charles County |
| Zip Location | 38°51'28.9"N 90°27'47.9"W |
| Maidenhead | EM48su |
| FRN | 0004702684 |
| Licensee ID/SGIN | L00355936 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 0 / 0 / MO |
| Prev Callsign / Prev Class | W0WHO T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 13 / 84 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-04-10 | LIISS - License Issued |
| 2026-04-10 | SYSGRT - New Systematic Call Sign Assigned |