Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7MMP callsign genealogy
Currently held by COOK, DAVID N
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 K7MMP's current licensee, walking backwards.
- Trimble, Steven AWAgranted 2018-11-06cancelled 2018-12-01
Successor callsigns
Callsigns held now by people who previously held K7MMP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7MMP, oldest first.
- COOK, DAVID N WA2003-10-24 → cancelled 2015-12-15
- Trimble, Steven A WA2018-12-01 active