| Callsign | NP3HS |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2006-08-21 |
| Effective Date | 2006-08-21 |
| Expire Date | 2016-11-18 |
| Cancel Date | 2018-11-20 |
| Last Action Date | 2018-11-20 |
| End Date | 2016-11-18 |
| Available Date | 2018-12-21 |
| Applicant Type | I - Individual |
| Entity Name | CASTRO ECHEVARRIA, EFRAIN |
| Street Address / Locality | HC 1 BOX 8018 PENUELAS, PR 00624 |
| County | Peñuelas Municipio |
| Zip Location | 18°03'53.7"N 66°42'60.0"W |
| Maidenhead | FK68pb |
| FRN | 0015416340 |
| Licensee ID/SGIN | L01184466 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 2x2 |
| ULS/Geo Region | 12 / 12 / PR |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0002720603 |
| Phonetic weight / Morse weight | 11 / 56 |