Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0YLO callsign genealogy
Currently held by CALLAHAN, RAYMOND A
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 K0YLO's current licensee, walking backwards.
- CALLAHAN, RAYMOND AIAgranted 1994-05-17cancelled 2002-04-04
Successor callsigns
Callsigns held now by people who previously held K0YLO.
No current licensee on record previously held this callsign.