Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7UDA callsign genealogy
Currently held by Sisson, James 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 K7UDA's current licensee, walking backwards.
- Sisson, James BAZgranted 2019-08-22cancelled 2020-02-28
Successor callsigns
Callsigns held now by people who previously held K7UDA.
- Sisson, James BARgranted 2026-08-25