Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI5RRB callsign genealogy
Currently held by ALEXANDER JR, WILLIAM W
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 KI5RRB's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KI5RRB.
- ALEXANDER JR, WILLIAM WTXgranted 2021-09-15cancelled 2026-02-09