Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PUG callsign genealogy
Currently held by Ryan, John R
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 K4PUG's current licensee, walking backwards.
- Ryan, John RKYgranted 2003-11-14cancelled 2003-12-09
Successor callsigns
Callsigns held now by people who previously held K4PUG.
No current licensee on record previously held this callsign.