Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ5DEV callsign genealogy
Currently held by OCONNOR, MICHAEL P
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 KJ5DEV's current licensee, walking backwards.
- OCONNOR, MICHAEL PTXgranted 2023-10-03cancelled 2023-11-06
Successor callsigns
Callsigns held now by people who previously held KJ5DEV.
No current licensee on record previously held this callsign.