Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4ATU callsign genealogy
Currently held by Payne, James D
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 KM4ATU's current licensee, walking backwards.
- Payne, James DKYgranted 2014-04-22cancelled 2014-04-30
Successor callsigns
Callsigns held now by people who previously held KM4ATU.
No current licensee on record previously held this callsign.