Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1TTY callsign genealogy
Currently held by Fuller, Steven C
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 KB1TTY's current licensee, walking backwards.
- Groom, Michael RAZgranted 2016-11-09cancelled 2016-11-29
Successor callsigns
Callsigns held now by people who previously held KB1TTY.
- Fuller, Steven CMAgranted 2014-01-28cancelled 2026-03-07
All historical holders
Every license row we've seen with the callsign KB1TTY, oldest first.
- Fuller, Steven C MA2010-02-26 → cancelled 2014-01-28
- Groom, Michael R AZ2016-11-29 active