Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RIG callsign genealogy
Currently held by ENGLAND, JOHN H
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 K4RIG's current licensee, walking backwards.
- Califf Sr, Michael DGAgranted 2016-11-30cancelled 2020-09-04
Successor callsigns
Callsigns held now by people who previously held K4RIG.
- SUTTER, WILLIAM JSCgranted 2017-04-18
All historical holders
Every license row we've seen with the callsign K4RIG, oldest first.
- ENGLAND, JOHN H TN1998-04-07 → cancelled 2010-04-08
- SUTTER, WILLIAM J SC2015-05-08 → cancelled 2017-04-18
- Califf Sr, Michael D GA2020-09-04 active