Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3UD callsign genealogy
Currently held by McCune II, Michael S
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 AB3UD's current licensee, walking backwards.
- McCune II, Michael SMDgranted 2013-05-20cancelled 2014-03-29
Successor callsigns
Callsigns held now by people who previously held AB3UD.
- McCune II, Michael SMDgranted 2026-01-31