Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4PKF callsign genealogy
Currently held by ULTIMATE RADIO TEAM
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 WP4PKF'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 WP4PKF.
- KP4URTactiveULTIMATE RADIO TEAMTXgranted 2025-05-28