| Callsign | WP4OSN |
|---|---|
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2013-05-01 |
| Effective Date | 2013-05-01 |
| Expire Date | 2023-05-01 |
| Cancel Date | 2025-05-02 |
| Last Action Date | 2025-05-02 |
| End Date | 2023-05-01 |
| Available Date | 2025-06-02 |
| Applicant Type | I - Individual |
| Entity Name | RUIZ VIERA, MELVIN |
| Street Address / Locality | CALLE CANGREJO NN8 DORADO, PR 00646 |
| County | Dorado Municipio |
| Zip Location | 18°26'06.4"N 66°16'51.8"W |
| Maidenhead | FK68uk |
| FRN | 0022663512 |
| Licensee ID/SGIN | L01785442 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 12 / 12 / PR |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0005762329 |
| Phonetic weight / Morse weight | 14 / 70 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2013-05-01 | SYSGRT - New Systematic Call Sign Assigned |
| 2013-05-01 | LIISS - License Issued |
| 2025-05-02 | LIEXP - License Expired |