Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1JEF callsign genealogy
Currently held by SWEET, PETER K
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 W1JEF's current licensee, walking backwards.
- Fontaine, Joseph EMAgranted 2016-07-13cancelled 2018-09-25
Successor callsigns
Callsigns held now by people who previously held W1JEF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1JEF, oldest first.
- SWEET, PETER K MA2006-08-17 → cancelled 2018-08-22
- Fontaine, Joseph E MA2018-09-25 active