Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3MU callsign genealogy
Currently held by COHEN, ROBERT D
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 AB3MU's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB3MU.
- COHEN, ROBERT DPAgranted 2021-03-05