uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AB1AX callsign genealogy

Currently held by COLLIS, THOMAS E

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 AB1AX's current licensee, walking backwards.

  1. KB1HVOcancelled· E
    Collis, Thomas EMAgranted 2001-12-21cancelled 2002-05-21
  2. KB1HQPcancelled· G
    Collis, Thomas EMAgranted 2001-12-21cancelled 2002-02-19

Successor callsigns

Callsigns held now by people who previously held AB1AX.

No current licensee on record previously held this callsign.