| Callsign | NP4RX |
| Radio Service | HV - Vanity |
| License Status | C - Canceled |
| Grant Date | 2014-08-08 |
| Effective Date | 2020-01-24 |
| Expire Date | 2024-08-08 |
| Cancel Date | 2020-02-29 |
| Last Action Date | 2020-02-29 |
| End Date | 2020-02-29 |
| Available Date | 2022-03-01 |
| Applicant Type | I - Individual |
| Entity Name | VELEZ VALENTIN, RICARDO F |
| Street Address / Locality | VALLE SAN LUIS 237 MOROVIS, PR 00687 |
| County | Morovis Municipio |
| Zip Location | 18°19'04.9"N 66°25'13.4"W |
| Maidenhead | FK68sh |
| FRN | 0006202204 |
| Licensee ID/SGIN | L01093629 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 2x2 |
| ULS/Geo Region | 12 / 12 / PR |
| Prev Callsign / Prev Class | WP4NGD |
| Next Callsign | NP3RV |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | |
| Phonetic weight / Morse weight | 12 / 60 |