Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB0QU callsign genealogy
Currently held by Sinak, Michael J
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 AB0QU's current licensee, walking backwards.
- Sinak, Michael JMOgranted 2000-12-27cancelled 2001-04-26
Successor callsigns
Callsigns held now by people who previously held AB0QU.
- Sinak, Michael JMOgranted 2022-03-16