Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4WYW callsign genealogy
Currently held by PEREZ MARTINEZ, WALTER 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 W4WYW's current licensee, walking backwards.
- PEREZ MARTINEZ, WALTER JPRgranted 2021-08-03cancelled 2026-04-28
Successor callsigns
Callsigns held now by people who previously held W4WYW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4WYW, oldest first.
- ANDREWS, DAVID H GA2000-09-01 → cancelled 2012-11-28
- PEREZ MARTINEZ, WALTER J PR2026-04-28 active