| Callsign | K4OSR |
|---|---|
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2020-01-03 |
| Effective Date | 2020-06-01 |
| Expire Date | 2030-01-03 |
| Cancel Date | |
| Last Action Date | 2024-02-08 |
| End Date | 2030-01-03 |
| Available Date | 2032-01-04 |
| Applicant Type | I - Individual |
| Entity Name | Roldan, Ernest A |
| Street Address / Locality | 6565 E ARIZONA AVE UNIT 5 DENVER, CO 80224 |
| County | Denver County |
| Zip Location | 39°41'15.9"N 104°54'40.8"W |
| Maidenhead | DM79nq |
| FRN | 0026030783 |
| Licensee ID/SGIN | L02312269 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 0 / CO |
| Prev Callsign / Prev Class | KE0YSS T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | 0009096314 |
| Phonetic weight / Morse weight | 12 / 58 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2020-01-03 | LIISS - License Issued |
| 2020-01-03 | VANGRT - Vanity Call Sign Assigned |
| 2020-06-01 | LIMOD - License Modified |