Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JPY callsign genealogy
Currently held by Radder, James M
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 K0JPY's current licensee, walking backwards.
- Radder, James MCOgranted 2016-06-20cancelled 2017-07-04
Successor callsigns
Callsigns held now by people who previously held K0JPY.
No current licensee on record previously held this callsign.