| Callsign | KB9YOF |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2025-06-06 |
| Effective Date | 2025-06-06 |
| Expire Date | 2035-06-20 |
| Cancel Date | |
| Last Action Date | 2025-06-06 |
| End Date | 2035-06-20 |
| Available Date | 2037-06-21 |
| Applicant Type | I - Individual |
| Entity Name | Caldwell Jr, Herbert W |
| Street Address / Locality | 1218 S. Valentia Ct. Denver, CO 80247 |
| County | Denver County |
| Zip Location | 39°41'52.1"N 104°52'44.0"W |
| Maidenhead | DM79nq |
| FRN | 0002264422 |
| Licensee ID/SGIN | L00257967 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 9 / 0 / CO |
| Prev Callsign / Prev Class | KF4BCG G - General |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0011594146 |
| Phonetic weight / Morse weight | 12 / 86 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2000-12-16 | LIISS - License Issued |
| 2002-02-06 | LIMOD - License Modified |
| 2004-07-07 | LIAUA - Administrative Update Applied |
| 2005-03-29 | LIREN - License Renewed |
| 2015-06-16 | LIREN - License Renewed |
| 2025-06-06 | LIREN - License Renewed |