Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7AYH callsign genealogy
Currently held by THRAPP, CHARLES 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 W7AYH's current licensee, walking backwards.
- PHILLIPS, JOHN CIDgranted 2018-10-02cancelled 2021-07-17
Successor callsigns
Callsigns held now by people who previously held W7AYH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7AYH, oldest first.
- THRAPP, CHARLES R WY2006-04-14 → cancelled 2018-06-19
- PHILLIPS, JOHN C ID2021-07-17 active