Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9SIR callsign genealogy
Currently held by Belford, Timothy W
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 K9SIR's current licensee, walking backwards.
- Belford, TimothyILgranted 2019-11-05cancelled 2020-06-01
Successor callsigns
Callsigns held now by people who previously held K9SIR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9SIR, oldest first.
- Buck, Russell H IN2008-05-06 → cancelled 2020-05-05
- Belford, Timothy W OK2020-06-01 active