Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0CTR callsign genealogy
Currently held by Gardner, Ryan S
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 KB0CTR's current licensee, walking backwards.
- Gardner, Ryan SCOgranted 2006-11-15cancelled 2006-12-08
Successor callsigns
Callsigns held now by people who previously held KB0CTR.
- Gardner, RyanCOgranted 2022-11-23