uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K1GMC callsign genealogy

Currently held by MCKNIGHT, JOHN S

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 K1GMC's current licensee, walking backwards.

  1. K2GMCactive· T
    Celenza, MichaelNYgranted 2026-07-07
  2. KD2IXVcancelled· T
    Celenza, MichaelNYgranted 2015-06-19cancelled 2015-07-17

Successor callsigns

Callsigns held now by people who previously held K1GMC.

No current licensee on record previously held this callsign.