Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1RKO callsign genealogy
Currently held by BONCI SR, JAMES F
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 K1RKO's current licensee, walking backwards.
- Shrewsbury, J KirkOKgranted 2019-02-15cancelled 2019-03-09
Successor callsigns
Callsigns held now by people who previously held K1RKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1RKO, oldest first.
- BONCI SR, JAMES F MA1998-01-23 → cancelled 2010-01-26
- Shrewsbury, J Kirk OK2019-03-09 active