Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CMP callsign genealogy
Currently held by PARKHURST, CHARLES M
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 K9CMP's current licensee, walking backwards.
- Plant, Christopher MWIgranted 2024-02-21cancelled 2024-04-05
Successor callsigns
Callsigns held now by people who previously held K9CMP.
- PARKHURST, CHARLES MOKgranted 2021-06-24
All historical holders
Every license row we've seen with the callsign K9CMP, oldest first.
- PARKHURST, CHARLES M OK2010-11-10 → cancelled 2011-08-02
- Plant, Christopher M WI2024-04-05 active