Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0TT callsign genealogy
Currently held by Spacek, Michael E
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 AB0TT's current licensee, walking backwards.
- Spacek, Michael EMOgranted 2001-04-19cancelled 2002-01-30
Successor callsigns
Callsigns held now by people who previously held AB0TT.
No current licensee on record previously held this callsign.