Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4LIO callsign genealogy
Currently held by PLYMATE, DEBRA L
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 KC4LIO's current licensee, walking backwards.
- Plymate, DebraORgranted 2023-06-27cancelled 2023-07-15
Successor callsigns
Callsigns held now by people who previously held KC4LIO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4LIO, oldest first.
- PLYMATE, DEBRA L OR2009-10-29 → cancelled 2021-11-16
- Plymate, Debra OR2023-07-15 active