Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0UCT callsign genealogy
Currently held by McKay, John R
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 KB0UCT's current licensee, walking backwards.
- McKay, John RMDgranted 2018-04-09cancelled 2018-04-28
Successor callsigns
Callsigns held now by people who previously held KB0UCT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB0UCT, oldest first.
- MC KAY, JOHN R CO1995-10-03 → cancelled 2007-10-04
- McKay, John R MD2018-04-28 active