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

AB1CS callsign genealogy

Currently held by Secakusuma, 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 AB1CS's current licensee, walking backwards.

  1. KB1JWKcancelled· E
    Secakusuma, PeterMAgranted 2003-03-25cancelled 2003-05-24
  2. KB1JRTcancelled· G
    Secakusuma, PeterMAgranted 2003-03-25cancelled 2003-04-24

Successor callsigns

Callsigns held now by people who previously held AB1CS.

  1. K1QFcancelled· E
    Secakusuma, PeterMAgranted 2003-06-14cancelled 2006-01-14
← Back to AB1CS License history →