Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4JR callsign genealogy
Currently held by Geranis, Arris 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 AB4JR's current licensee, walking backwards.
- Geranis, John AALgranted 2009-04-13cancelled 2009-11-07
Successor callsigns
Callsigns held now by people who previously held AB4JR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4JR, oldest first.
- GERANIS, ARRIS J FL1997-03-27 → cancelled 2009-03-28
- Geranis, Arris J AL2009-11-07 → cancelled 2021-11-09