Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1XR callsign genealogy
Currently held by Doody, Michael
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 AB1XR's current licensee, walking backwards.
- Doody, MichaelMAgranted 2017-06-21cancelled 2018-09-05
Successor callsigns
Callsigns held now by people who previously held AB1XR.
- Richter, Paul JMAgranted 2025-09-16
All historical holders
Every license row we've seen with the callsign AB1XR, oldest first.
- Richter, Paul J MA2015-05-14 → cancelled 2015-10-02
- Doody, Michael MA2018-09-05 active