Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4POS callsign genealogy
Currently held by GUTHRIE, BOYD A
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 KK4POS's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4POS.
- GUTHRIE, BOYD ANCgranted 2013-03-18cancelled 2025-03-19