| Callsign | KB0SXF |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2025-06-18 |
| Effective Date | 2025-06-18 |
| Expire Date | 2035-07-02 |
| Cancel Date | |
| Last Action Date | 2025-06-18 |
| End Date | 2035-07-02 |
| Available Date | 2037-07-03 |
| Applicant Type | I - Individual |
| Entity Name | UNDERWOOD, RALPH E |
| Street Address / Locality | 3885 RAWHIDE CIRCLE, PO Box 1421 CASTLE ROCK, CO 80104 |
| County | Douglas County |
| Zip Location | 39°18'06.9"N 104°49'05.2"W |
| Maidenhead | DM79oh |
| FRN | 0011417805 |
| Licensee ID/SGIN | L00908266 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 0 / 0 / CO |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0002088770 |
| Phonetic weight / Morse weight | 13 / 80 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2004-08-21 | LIAUA - Administrative Update Applied |
| 2004-08-23 | LTSFRN |
| 2005-03-16 | LIREN - License Renewed |
| 2015-07-02 | LIREN - License Renewed |
| 2025-06-18 | LIREN - License Renewed |