Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WJ0R callsign genealogy
Currently held by Rubin, Joshua
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 WJ0R's current licensee, walking backwards.
- Rubin, JoshuaCOgranted 2020-05-18cancelled 2020-08-07
Successor callsigns
Callsigns held now by people who previously held WJ0R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WJ0R, oldest first.
- Jones, James E MO2008-02-29 → cancelled 2020-05-22
- Rubin, Joshua CO2020-08-07 active