Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6CBL callsign genealogy
Currently held by RYAN, THOMAS C
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 K6CBL's current licensee, walking backwards.
- RYAN, THOMAS CCAgranted 2005-09-15cancelled 2006-01-10
Successor callsigns
Callsigns held now by people who previously held K6CBL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6CBL, oldest first.
- MULLEN, JOHN E CA2001-08-24 → cancelled 2005-07-18
- RYAN, THOMAS C NM2025-11-25 active