Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5GYD callsign genealogy
Currently held by BIEDENHARN, JOHN D
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 W5GYD's current licensee, walking backwards.
- BIEDENHARN, JOHN DCAgranted 2007-05-14cancelled 2007-12-22
Successor callsigns
Callsigns held now by people who previously held W5GYD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5GYD, oldest first.
- GIRARD, BILL R AR1995-11-28 → cancelled 2007-11-29
- BIEDENHARN, JOHN D CA2018-03-01 active