Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1JWS callsign genealogy
Currently held by Al-Dosari, Mohd S
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 KB1JWS's current licensee, walking backwards.
- SIMPSON, JAMES WMAgranted 2012-10-23cancelled 2019-09-07
- KB0EYSno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KB1JWS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1JWS, oldest first.
- Al-Dosari, Mohd S ME2003-04-25 → cancelled 2015-04-28
- SIMPSON, JAMES W MA2019-09-07 active