Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5UQ callsign genealogy
Currently held by Bartz, Stephen 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 AD5UQ's current licensee, walking backwards.
- Bartz, Stephen PTXgranted 2005-06-03cancelled 2005-08-29
Successor callsigns
Callsigns held now by people who previously held AD5UQ.
No current licensee on record previously held this callsign.