Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7TU callsign genealogy
Currently held by COOMBER, JONATHAN D
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 KB7TU's current licensee, walking backwards.
- COOMBER, JONATHAN DWAgranted 2013-02-05cancelled 2021-06-12
Successor callsigns
Callsigns held now by people who previously held KB7TU.
No current licensee on record previously held this callsign.