Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF7UBR callsign genealogy
Currently held by Roth, Mike A
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 KF7UBR's current licensee, walking backwards.
- Roth, Mike AORgranted 2009-09-21cancelled 2009-10-24
Successor callsigns
Callsigns held now by people who previously held KF7UBR.
No current licensee on record previously held this callsign.