Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4PN callsign genealogy
Currently held by Testerman, Matthew S
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 KX4PN's current licensee, walking backwards.
- Testerman, Matthew SGAgranted 2018-12-13cancelled 2019-01-31
Successor callsigns
Callsigns held now by people who previously held KX4PN.
No current licensee on record previously held this callsign.