Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE7SIN callsign genealogy
Currently held by Naemura, Joseph R
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 KE7SIN's current licensee, walking backwards.
- Sinnott, Alexander GORgranted 2018-07-06cancelled 2018-09-14
Successor callsigns
Callsigns held now by people who previously held KE7SIN.
- Naemura, Joseph RWAgranted 2019-02-06
All historical holders
Every license row we've seen with the callsign KE7SIN, oldest first.
- Naemura, Joseph R WA2008-03-13 → cancelled 2009-04-25
- Sinnott, Alexander OR2018-09-14 active