Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0BGK callsign genealogy
Currently held by HAGUE, MARTHA M
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 K0BGK's current licensee, walking backwards.
- Keefer, BrendonCOgranted 2020-06-01cancelled 2020-06-20
Successor callsigns
Callsigns held now by people who previously held K0BGK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BGK, oldest first.
- HAGUE, MARTHA M AZ1996-07-24 → cancelled 2008-07-25
- Keefer, Brendon CO2020-06-20 active