Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DOG callsign genealogy
Currently held by GRIFFISS, MARSHALL G
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 N4DOG's current licensee, walking backwards.
- Griffiss, Marshall GFLgranted 1999-10-29cancelled 1999-12-17
Successor callsigns
Callsigns held now by people who previously held N4DOG.
No current licensee on record previously held this callsign.