Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0BUL callsign genealogy
Currently held by Oliphant, Thomas V
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 K0BUL's current licensee, walking backwards.
- Oliphant, Thomas VCOgranted 2019-01-30cancelled 2019-05-24
Successor callsigns
Callsigns held now by people who previously held K0BUL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BUL, oldest first.
- MORET JR, FRANK MO2004-01-02 → cancelled 2016-03-23
- Oliphant, Thomas V CO2019-05-24 active