Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6MTB callsign genealogy
Currently held by Gray, Daniel J
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 W6MTB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W6MTB.
No current licensee on record previously held this callsign.