Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB1GFT callsign genealogy
Currently held by HARRIS, MARK B
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 KB1GFT's current licensee, walking backwards.
- Stater, William RCAgranted 2018-12-12cancelled 2019-01-01
Successor callsigns
Callsigns held now by people who previously held KB1GFT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1GFT, oldest first.
- HARRIS, MARK B MA2001-01-29 → cancelled 2013-01-30
- Stater, William R CA2019-01-01 active