Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7OBX callsign genealogy
Currently held by GOLLIHUR, MATTHEW
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 K7OBX's current licensee, walking backwards.
- GOLLIHUR, MATTHEWUTgranted 2021-09-20cancelled 2021-10-09
Successor callsigns
Callsigns held now by people who previously held K7OBX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7OBX, oldest first.
- JACOBS, JOHN M AZ1994-09-08 → cancelled 2006-09-09
- GOLLIHUR, MATTHEW UT2021-10-09 active