Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OYC callsign genealogy
Currently held by BOWMAN JR, HAROLD L
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 K4OYC's current licensee, walking backwards.
- BOWMAN JR, HAROLD LGAgranted 2021-04-01cancelled 2024-07-06
Successor callsigns
Callsigns held now by people who previously held K4OYC.
No current licensee on record previously held this callsign.