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

NP3J callsign genealogy

Currently held by Nakamura, Hirofumi

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 NP3J's current licensee, walking backwards.

  1. KP3BQcancelled· E
    Nakamura, HirofumiPRgranted 2005-05-27cancelled 2007-03-02
  2. WP4NPRcancelled· E
    Nakamura, HirofumiPRgranted 2005-05-27cancelled 2006-03-14

Successor callsigns

Callsigns held now by people who previously held NP3J.

  1. KP4DRcancelled· E
    BARCELO CUMBA, JAIMEPRgranted 1998-09-17cancelled 2007-03-10

All historical holders

Every license row we've seen with the callsign NP3J, oldest first.

  • Nakamura, Hirofumi PR
    2016-12-20 active
  • BARCELO CUMBA, JAIME
    — → cancelled 1998-09-17
← Back to NP3J License history →