Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7CQ callsign genealogy
Currently held by KRUEGER, ROBERT W
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 AB7CQ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB7CQ.
- Wingren, Michael JWAgranted 2012-11-27cancelled 2018-11-24
All historical holders
Every license row we've seen with the callsign AB7CQ, oldest first.
- HELSEL, FREDERICK D WA1994-04-19 → cancelled 2006-04-20
- Wingren, Michael J WA2007-04-10 → cancelled 2012-11-27
- KRUEGER, ROBERT W AZ2016-01-15 active