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

KP4FRB callsign genealogy

Currently held by Reyes Benitez, Fredy L

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 KP4FRB's current licensee, walking backwards.

  1. WP4OIHcancelled· T
    Reyes Benitez, Fredy LPRgranted 2011-02-04cancelled 2011-02-25
  2. KF7NSZcancelled· T
    Reyes Benitez, Fredy LPRgranted 2011-02-04cancelled 2011-02-05

Successor callsigns

Callsigns held now by people who previously held KP4FRB.

  1. KP4CSIactive· E
    REYES BENITEZ, FREDDY LPRgranted 2021-10-22
← Back to KP4FRB License history →