Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7THL callsign genealogy
Currently held by Sheffield, Willard A
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 N7THL's current licensee, walking backwards.
- SHEFFIELD, JERRY AORgranted 2004-07-07cancelled 2013-09-10
Successor callsigns
Callsigns held now by people who previously held N7THL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7THL, oldest first.
- Sheffield, Willard A OR2011-06-24 → cancelled 2012-11-30
- SHEFFIELD, JERRY A OR2023-11-09 active