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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KP4NR callsign genealogy

Currently held by TORRES, RAMIRO

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 KP4NR's current licensee, walking backwards.

  1. KP4NRRcancelled· E
    RIVERA RIVERA, NICOLASPRgranted 2024-01-10cancelled 2024-07-09
  2. WP4OXDcancelled· G
    RIVERA RIVERA, NICOLASPRgranted 2014-01-03cancelled 2014-01-25

Successor callsigns

Callsigns held now by people who previously held KP4NR.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KP4NR, oldest first.

  • TORRES, RAMIRO PR
    2007-01-30 → cancelled 2019-02-12
  • RIVERA RIVERA, NICOLAS PR
    2024-07-09 active
← Back to KP4NR License history →