Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4WPU callsign genealogy
Currently held by Tyrone Amateur Radio Club
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 KM4WPU'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 KM4WPU.
- NA4CQcancelledTyrone Amateur Radio ClubGAgranted 2016-10-14cancelled 2025-12-15