Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1YRW callsign genealogy
Currently held by Petrou, Michael 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 KB1YRW'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 KB1YRW.
- Petrou, Michael SMAgranted 2012-11-16cancelled 2024-12-04