Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2AZZ callsign genealogy
Currently held by Billig, Matthew
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 K2AZZ's current licensee, walking backwards.
- Billig, MatthewNYgranted 2024-07-30cancelled 2024-08-20
Successor callsigns
Callsigns held now by people who previously held K2AZZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2AZZ, oldest first.
- Keenan, Francis J NY2008-11-04 → cancelled 2020-11-05
- Billig, Matthew NY2024-08-20 active