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

NP4AW callsign genealogy

Currently held by SANTIAGO MATOS, RICARDO

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 NP4AW's current licensee, walking backwards.

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

Successor callsigns

Callsigns held now by people who previously held NP4AW.

  1. NP4Lactive· E
    PADILLA, CARLOSPRgranted 2023-06-22

All historical holders

Every license row we've seen with the callsign NP4AW, oldest first.

  • SANTIAGO MATOS, RICARDO PR
    1990-01-23 → cancelled 2002-03-07
  • ARRL Puerto Rico Section Convention, Inc PR
    2016-03-22 → cancelled 2016-04-01
  • PADILLA, CARLOS PR
    2017-04-07 → cancelled 2023-06-22
← Back to NP4AW License history →