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

AB1ZT callsign genealogy

Currently held by PERRY, MICHAEL P

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 AB1ZT's current licensee, walking backwards.

  1. N1JKTcancelled· E
    TRAINER, JOHN KNHgranted 2012-01-10cancelled 2019-04-09
  2. N1MPLactive· G
    Lefebvre, Michael PCTgranted 2016-12-13
  3. KB1UQCcancelled· G
    Lefebvre, Michael PCTgranted 2010-08-04cancelled 2016-12-13

Successor callsigns

Callsigns held now by people who previously held AB1ZT.

  1. W1MPPcancelled· E
    PERRY, MICHAEL PMAgranted 2016-06-21cancelled 2016-09-07

All historical holders

Every license row we've seen with the callsign AB1ZT, oldest first.

  • PERRY, MICHAEL P MA
    2009-03-10 → cancelled 2016-06-21
  • TRAINER, JOHN K NH
    2019-04-09 active
← Back to AB1ZT License history →