Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4YNP callsign genealogy
Currently held by BASS, WILLIAM C
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 K4YNP's current licensee, walking backwards.
- BASS, WILLIAM CFLgranted 2013-01-15cancelled 2013-03-09
Successor callsigns
Callsigns held now by people who previously held K4YNP.
No current licensee on record previously held this callsign.