Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1EXB callsign genealogy
Currently held by SANTOSUOSSO JR, FRANK
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 KC1EXB's current licensee, walking backwards.
- SANTOSUOSSO JR, FRANKMAgranted 2006-10-20cancelled 2015-12-29
Successor callsigns
Callsigns held now by people who previously held KC1EXB.
- SANTOSUOSSO, FRANK LMAgranted 2021-02-02