Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1UK callsign genealogy
Currently held by KNUDSEN, 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 AA1UK's current licensee, walking backwards.
- KNUDSEN, MICHAEL Jcancelled 1999-03-09
Successor callsigns
Callsigns held now by people who previously held AA1UK.
No current licensee on record previously held this callsign.