Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD7J callsign genealogy
Currently held by CHISHOLM, CHARLIE
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 WD7J's current licensee, walking backwards.
- Wilkinson, ByronAZgranted 2021-10-04cancelled 2025-03-08
Successor callsigns
Callsigns held now by people who previously held WD7J.
- Monteith, David MCAgranted 2011-01-25cancelled 2017-03-31
All historical holders
Every license row we've seen with the callsign WD7J, oldest first.
- Monteith, David M CA2008-08-07 → cancelled 2011-01-25
- CHISHOLM, CHARLIE WA2013-02-15 → cancelled 2025-02-19
- Wilkinson, Byron AZ2025-03-08 active