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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

NP4L callsign genealogy

Currently held by LOINAZ, CARMEN

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by NP4L's current licensee, walking backwards.

  1. NP4AWcancelled· E
    PADILLA, CARLOSPRgranted 2017-04-07cancelled 2023-06-22
  2. KP4CPCcancelled· E
    PADILLA, CARLOSPRgranted 2010-04-29cancelled 2017-04-07
  3. NP3OFcancelled· G
    PADILLA CORTES, CARLOSPRgranted 1998-03-12cancelled 2000-07-24

Successor callsigns

Callsigns held now by people who previously held NP4L.

  1. KP3Tactive· E
    Rivera, Jose APRgranted 2021-07-24
  2. KP4Factive· E
    Cubero Caban, Luis APRgranted 2021-05-28

All historical holders

Every license row we've seen with the callsign NP4L, oldest first.

  • LOINAZ, CARMEN PR
    1988-03-15 → cancelled 2000-03-16
  • RIVERA, JOSE A PR
    2000-04-07 → cancelled 2001-10-16
  • Cubero Caban, Luis A PR
    2013-11-13 → cancelled 2021-05-28
  • PADILLA, CARLOS PR
    2023-06-22 active
← Back to NP4L License history →