| Callsign | KO6MCU |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-01-27 |
| Effective Date | 2026-01-27 |
| Expire Date | 2036-01-27 |
| Cancel Date | |
| Last Action Date | 2026-01-27 |
| End Date | 2036-01-27 |
| Available Date | 2038-01-28 |
| Applicant Type | I - Individual |
| Entity Name | O'Brien, Marc |
| Street Address / Locality | 828 Baker St San Francisco, CA 94115 |
| County | San Francisco County |
| Zip Location | 37°47'09.5"N 122°26'14.1"W |
| Maidenhead | CM87ss |
| FRN | 0034508085 |
| Licensee ID/SGIN | L03003052 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 6 / 6 / CA |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 11 / 74 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2026-01-27 | SYSGRT - New Systematic Call Sign Assigned |
| 2026-01-27 | LIISS - License Issued |