Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9ZX callsign genealogy
Currently held by Herbert, Robert M
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 AB9ZX's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AB9ZX.
- Herbert, Robert MILgranted 2011-09-24cancelled 2023-09-26