| Callsign | WP4NVU |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2018-05-04 |
| Effective Date | 2026-03-03 |
| Expire Date | 2028-05-04 |
| Cancel Date | |
| Last Action Date | 2026-03-03 |
| End Date | 2028-05-04 |
| Available Date | 2030-05-05 |
| Applicant Type | I - Individual |
| Entity Name | Montalvo-Castro, Melvyn |
| Street Address / Locality | 52 Calle Pinos Camuy, PR 00627 |
| County | Camuy Municipio |
| Zip Location | 18°24'45.0"N 66°51'49.7"W |
| Maidenhead | FK68nj |
| FRN | 0017080748 |
| Licensee ID/SGIN | L01337461 / 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 | 0003215369 |
| Phonetic weight / Morse weight | 14 / 70 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2007-10-30 | SYSGRT - New Systematic Call Sign Assigned |
| 2007-10-30 | LIISS - License Issued |
| 2018-05-04 | LIREN - License Renewed |
| 2026-03-03 | LIAUA - Administrative Update Applied |