Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4PW callsign genealogy
Currently held by IRWIN, DAVID J
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 KX4PW's current licensee, walking backwards.
- IRWIN, DAVID JVAgranted 2017-01-12cancelled 2019-02-11
Successor callsigns
Callsigns held now by people who previously held KX4PW.
No current licensee on record previously held this callsign.