Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K7GKB callsign genealogy
Currently held by BISCHOFF, GRANT K
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 K7GKB's current licensee, walking backwards.
- BISCHOFF, GRANT KUTgranted 2015-09-22cancelled 2016-02-27
Successor callsigns
Callsigns held now by people who previously held K7GKB.
No current licensee on record previously held this callsign.