Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ASR callsign genealogy
Currently held by COGBURN, HAROLD T
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 K4ASR's current licensee, walking backwards.
- Deboe, William CGAgranted 2018-11-21cancelled 2018-12-11
Successor callsigns
Callsigns held now by people who previously held K4ASR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4ASR, oldest first.
- COGBURN, HAROLD T NV2004-09-14 → cancelled 2016-11-04
- Deboe Jr, William C GA2018-12-11 active