Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB1ZO callsign genealogy
Currently held by Smigielski, Brian 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 AB1ZO's current licensee, walking backwards.
- Smigielski, Brian JMAgranted 2016-03-09cancelled 2016-05-19
Successor callsigns
Callsigns held now by people who previously held AB1ZO.
No current licensee on record previously held this callsign.