Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WY7MM callsign genealogy
Currently held by MC GUFFEY, MARTIN L
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 WY7MM's current licensee, walking backwards.
- MC GUFFEY, MARTIN LWYgranted 2012-07-26cancelled 2018-09-22
- KG7DFno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held WY7MM.
No current licensee on record previously held this callsign.