Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1AZ callsign genealogy
Currently held by Brown, James 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 KB1AZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KB1AZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1AZ, oldest first.
- PIATEK, FRANK J MA1996-01-30 → cancelled 2008-01-31
- Brown, James C NH2018-02-16 active