Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7CSW callsign genealogy
Currently held by Holder, Justin E
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 KB7CSW's current licensee, walking backwards.
- Holder, Justin ENCgranted 2009-03-30cancelled 2009-09-26
Successor callsigns
Callsigns held now by people who previously held KB7CSW.
No current licensee on record previously held this callsign.