Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9YEI callsign genealogy
Currently held by Erb, Brian S
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 KC9YEI'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 KC9YEI.
- Erb, Brian SINgranted 2013-01-25cancelled 2013-02-26