Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4XP callsign genealogy
Currently held by ROOF, JOSEPH H
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 KR4XP's current licensee, walking backwards.
- KI4UQno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KR4XP.
- Roof, Joseph HGAgranted 2020-06-16