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

K1BJ callsign genealogy

Currently held by THOMPSON, BRIAN D

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 K1BJ's current licensee, walking backwards.

  1. W7BDTcancelled· E
    THOMPSON, BRIAN DWAgranted 2007-02-13cancelled 2007-05-26
  2. KE7JOOcancelled· T
    THOMPSON, BRIAN DWAgranted 2006-11-15cancelled 2007-02-13

Successor callsigns

Callsigns held now by people who previously held K1BJ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K1BJ, oldest first.

  • POWERS, PETER E MA
    1997-02-07 → cancelled 2001-10-30
  • THOMPSON, BRIAN D UT
    2017-05-09 active