Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB5YDH callsign genealogy
Currently held by Holder III, James B
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 WB5YDH's current licensee, walking backwards.
- Holder, James BNVgranted 2006-05-23cancelled 2006-07-06
Successor callsigns
Callsigns held now by people who previously held WB5YDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB5YDH, oldest first.
- HOLDER, JAMES B CA1988-05-24 → cancelled 2000-05-25
- Holder III, James B NM2017-10-24 active