Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4OJR callsign genealogy
Currently held by BALL, DAVID A
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 K4OJR's current licensee, walking backwards.
- BALL, DAVID AGAgranted 2001-07-12cancelled 2003-10-11
Successor callsigns
Callsigns held now by people who previously held K4OJR.
No current licensee on record previously held this callsign.