Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6CMS callsign genealogy
Currently held by SEALOCK, CARL 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 K6CMS's current licensee, walking backwards.
- Stiles, Chris MMTgranted 2021-01-11cancelled 2021-01-29
Successor callsigns
Callsigns held now by people who previously held K6CMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6CMS, oldest first.
- SEALOCK, CARL M CA2008-01-05 → cancelled 2020-03-04
- STILES, CHRIS M MT2021-01-29 active