Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4RL callsign genealogy
Currently held by Tan, Arthur
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 AB4RL's current licensee, walking backwards.
- KM4VDno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AB4RL.
- Tan, ArthurCAgranted 2026-05-29