| Callsign | KM4OPO |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2025-12-03 |
| Effective Date | 2025-12-03 |
| Expire Date | 2035-12-03 |
| Cancel Date | |
| Last Action Date | 2025-12-03 |
| End Date | 2035-12-03 |
| Available Date | 2037-12-04 |
| Applicant Type | I - Individual |
| Entity Name | Adelstein, Michael K |
| Street Address / Locality | 2201 Jules St Apt B Saint Louis, MO 63104 |
| County | St. Louis city |
| Zip Location | 38°36'40.1"N 90°12'50.7"W |
| Maidenhead | EM48vo |
| FRN | 0025023086 |
| Licensee ID/SGIN | L01981218 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 0 / MO |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0007011842 |
| Phonetic weight / Morse weight | 11 / 78 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2015-11-03 | SYSGRT - New Systematic Call Sign Assigned |
| 2015-11-03 | LIISS - License Issued |
| 2025-12-03 | LIREN - License Renewed |