Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB7TJH callsign genealogy
Currently held by Birch, James 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 WB7TJH's current licensee, walking backwards.
- Birch, James DIDgranted 2023-04-22cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held WB7TJH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB7TJH, oldest first.
- BIRCH, DENNIS E ID2012-02-14 → cancelled 2021-06-25
- Birch, James D ID2023-06-22 active