Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7JTZ callsign genealogy
Currently held by Tuthill, John
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 K7JTZ's current licensee, walking backwards.
- Tuthill, JohnAZgranted 2023-11-15cancelled 2023-12-05
Successor callsigns
Callsigns held now by people who previously held K7JTZ.
No current licensee on record previously held this callsign.