Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5JZS callsign genealogy
Currently held by SPEED JR, GEORGE B
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 K5JZS's current licensee, walking backwards.
- SPEED JR, GEORGE BTXgranted 2015-11-28
Successor callsigns
Callsigns held now by people who previously held K5JZS.
- SPEED JR, GEORGE BTXgranted 2015-11-28