Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0LM callsign genealogy
Currently held by Barth JR, Robert A
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 AB0LM's current licensee, walking backwards.
- BARTH JR, ROBERT AMOgranted 1999-02-15cancelled 2000-05-26
Successor callsigns
Callsigns held now by people who previously held AB0LM.
No current licensee on record previously held this callsign.