Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RCB callsign genealogy
Currently held by Breyer, Robert C
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 K1RCB's current licensee, walking backwards.
- BREYER, ROBERT CNCgranted 1999-11-18cancelled 2000-10-31
Successor callsigns
Callsigns held now by people who previously held K1RCB.
No current licensee on record previously held this callsign.