Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8ZI callsign genealogy
Currently held by Mueller, Mark C
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 AB8ZI's current licensee, walking backwards.
- Mueller, Mark CMIgranted 2004-11-17cancelled 2007-06-28
Successor callsigns
Callsigns held now by people who previously held AB8ZI.
No current licensee on record previously held this callsign.