| Callsign | WP4NDJ |
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2025-11-27 |
| Effective Date | 2025-12-01 |
| Expire Date | 2035-10-19 |
| Cancel Date | |
| Last Action Date | 2025-12-01 |
| End Date | 2035-10-19 |
| Available Date | 2037-10-20 |
| Applicant Type | I - Individual |
| Entity Name | SANDOVAL AVILES, HUMBERTO |
| Street Address / Locality | 10 CALLE ESPANA MANATI, PR 006746629 |
| County | Manatí Municipio |
| Zip Location | 18°25'22.5"N 66°29'21.6"W |
| Maidenhead | FK68sk |
| FRN | 0013747803 |
| Licensee ID/SGIN | L01039908 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 12 / 12 / PR |
| Prev Callsign / Prev Class | P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0011807348 |
| Phonetic weight / Morse weight | 14 / 74 |