Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OIM callsign genealogy
Currently held by BRADSHAW, WALTER E
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 K4OIM's current licensee, walking backwards.
- BRADSHAW, WALTER ESCgranted 2012-08-15cancelled 2017-08-08
Successor callsigns
Callsigns held now by people who previously held K4OIM.
No current licensee on record previously held this callsign.