Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4GO callsign genealogy
Currently held by FENSTERMACHER, DOUGLAS S
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 AG4GO's current licensee, walking backwards.
- FENSTERMACHER, DOUGLAS SVAgranted 2000-05-31cancelled 2001-03-01
Successor callsigns
Callsigns held now by people who previously held AG4GO.
No current licensee on record previously held this callsign.