Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K4MPX callsign genealogy
Currently held by SAHTOE, YVES S
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 K4MPX's current licensee, walking backwards.
- KD4BUWcancelledcancelled 1998-03-18
Successor callsigns
Callsigns held now by people who previously held K4MPX.
No current licensee on record previously held this callsign.