Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5YZW callsign genealogy
Currently held by IRELAND, MARVIN E
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 K5YZW's current licensee, walking backwards.
- IRELAND, MARVIN ETXgranted 2014-03-05cancelled 2014-05-09
Successor callsigns
Callsigns held now by people who previously held K5YZW.
No current licensee on record previously held this callsign.