Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NF0T callsign genealogy
Currently held by Butler, Ryan E W
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 NF0T's current licensee, walking backwards.
- Butler, Ryan E WIAgranted 2003-02-25cancelled 2008-01-15
Successor callsigns
Callsigns held now by people who previously held NF0T.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NF0T, oldest first.
- MANOR, SUSAN I TX2003-11-06 → cancelled 2005-12-22
- Butler, Ryan E W IA2017-11-21 active