Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC3MO callsign genealogy
Currently held by Oliveri, Cathy M
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 KC3MO's current licensee, walking backwards.
- Oliveri, Cathy MMDgranted 2017-10-23cancelled 2018-02-23
Successor callsigns
Callsigns held now by people who previously held KC3MO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC3MO, oldest first.
- BURKE, THOMAS J PA1996-03-21 → cancelled 2008-03-22
- Oliveri, Cathy M MD2018-02-23 active