Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1XT callsign genealogy
Currently held by Donovan, Peter
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 KC1XT's current licensee, walking backwards.
- Donovan, PeterMEgranted 2015-09-10cancelled 2016-05-28
Successor callsigns
Callsigns held now by people who previously held KC1XT.
All historical holders
Every license row we've seen with the callsign KC1XT, oldest first.
- MARRONE, ROBERT G CT2000-09-22 → cancelled 2000-11-03
- Donovan, Peter ME2016-05-28 → cancelled 2019-03-05