Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM7DGK callsign genealogy
Currently held by Colclough, Chris
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 KM7DGK's current licensee, walking backwards.
- Colclough, ChrisAZgranted 2025-11-26cancelled 2025-12-08
Successor callsigns
Callsigns held now by people who previously held KM7DGK.
- Colclough, ChrisAZgranted 2026-08-14