Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4FTU callsign genealogy
Currently held by SUTTLE JR, ALVIN M
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 K4FTU's current licensee, walking backwards.
- SUTTLE JR, ALVIN MNCgranted 2011-11-17cancelled 2016-10-14
Successor callsigns
Callsigns held now by people who previously held K4FTU.
No current licensee on record previously held this callsign.