Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ4UQ callsign genealogy
Currently held by GLAAB, THOMAS J
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 AJ4UQ's current licensee, walking backwards.
- GLAAB, THOMAS JSCgranted 2009-08-20cancelled 2009-12-18
Successor callsigns
Callsigns held now by people who previously held AJ4UQ.
No current licensee on record previously held this callsign.