Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1XAQ callsign genealogy
Currently held by MUELLER, MARK
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 K1XAQ's current licensee, walking backwards.
- MUELLER, MARKAZgranted 2016-08-24cancelled 2016-09-13
Successor callsigns
Callsigns held now by people who previously held K1XAQ.
No current licensee on record previously held this callsign.