Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9MMK callsign genealogy
Currently held by Davidson, Gary A
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 K9MMK's current licensee, walking backwards.
- Davidson, Gary AWIgranted 2005-11-30cancelled 2012-04-06
Successor callsigns
Callsigns held now by people who previously held K9MMK.
No current licensee on record previously held this callsign.