Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4GSR callsign genealogy
Currently held by Guajataka Scouting Radio
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 KP4GSR's current licensee, walking backwards.
- WP4TOCcancelledGuajataka Scouting RadioPRgranted 2025-01-11cancelled 2025-01-31
Successor callsigns
Callsigns held now by people who previously held KP4GSR.
No current licensee on record previously held this callsign.