Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5YY callsign genealogy
Currently held by PORTER, JOHN W
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 KC5YY's current licensee, walking backwards.
- PORTER, JOHN WTXgranted 2014-10-23cancelled 2024-04-19
Successor callsigns
Callsigns held now by people who previously held KC5YY.
No current licensee on record previously held this callsign.