Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ATQ callsign genealogy
Currently held by MEASELS, MARK H
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 K4ATQ's current licensee, walking backwards.
- MEASELS, MARK HGAgranted 2017-08-23cancelled 2021-05-18
Successor callsigns
Callsigns held now by people who previously held K4ATQ.
No current licensee on record previously held this callsign.