Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB5SA callsign genealogy
Currently held by BLUM, ARIEL S
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 AB5SA's current licensee, walking backwards.
- BLUM, ARIEL SNYgranted 2022-04-13cancelled 2022-05-06
Successor callsigns
Callsigns held now by people who previously held AB5SA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB5SA, oldest first.
- WILLIAMS, RAYMOND C TX2003-10-10 → cancelled 2015-12-29
- BLUM, ARIEL S NY2022-05-06 active