Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KX4ER callsign genealogy
Currently held by Foster, Seth M
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 KX4ER's current licensee, walking backwards.
- Foster, Seth MGAgranted 2016-05-19cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held KX4ER.
No current licensee on record previously held this callsign.