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

KO4PA callsign genealogy

Currently held by ALONSO, PETER

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 KO4PA's current licensee, walking backwards.

  1. KY4OTcancelled· E
    ALONSO, PETERSCgranted 2022-03-30cancelled 2022-05-17
  2. KO4ZCNcancelled· E
    ALONSO, PETERSCgranted 2022-03-30cancelled 2022-04-22

Successor callsigns

Callsigns held now by people who previously held KO4PA.

  1. K4DXRactive· E
    STOCKMAN, ANDREW GNCgranted 2017-09-13

All historical holders

Every license row we've seen with the callsign KO4PA, oldest first.

  • ALONSO, PETER SC
    2022-05-17 active
  • STOCKMAN, ANDREW G
    — → cancelled 1997-08-21
← Back to KO4PA License history →