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

KP4RA callsign genealogy

Currently held by NIEVES, GREGORIO

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 KP4RA's current licensee, walking backwards.

  1. KP3BXcancelled· E
    NIEVES, GREGORIOPRgranted 2008-05-29cancelled 2013-03-16
  2. WP4CHcancelled· E
    NIEVES, GREGORIOPRgranted 2008-05-29cancelled 2010-09-14

Successor callsigns

Callsigns held now by people who previously held KP4RA.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KP4RA, oldest first.

  • SANCHEZ COLON, JULIAN PR
    2001-08-28 → cancelled 2012-09-05
  • NIEVES, GREGORIO PR
    2013-03-16 → cancelled 2025-03-18
← Back to KP4RA License history →