Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5YOR callsign genealogy
Currently held by FLAHERTY, STEPHEN F
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 KC5YOR'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 KC5YOR.
- FLAHERTY, STEPHEN FTXgranted 2018-09-01cancelled 2020-08-11