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

KI1F callsign genealogy

Currently held by Jirawattanaphol, Apiwat

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 KI1F's current licensee, walking backwards.

  1. AG6DTcancelled· E
    Jirawattanaphol, ApiwatNHgranted 2010-12-23cancelled 2011-07-12
  2. KJ4ZRPcancelled· E
    Jirawattanaphol, ApiwatCAgranted 2010-12-23cancelled 2011-05-03

Successor callsigns

Callsigns held now by people who previously held KI1F.

  1. W1YQRactive· E
    WECHTER, PETER DMAgranted 2016-04-07
← Back to KI1F License history →