Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC4TLY callsign genealogy
Currently held by York, Timothy 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 KC4TLY's current licensee, walking backwards.
- York, Timothy LTNgranted 2015-11-23cancelled 2018-07-24
Successor callsigns
Callsigns held now by people who previously held KC4TLY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4TLY, oldest first.
- LAWSON, KENNEY L TN1990-10-09 → cancelled 2002-10-10
- York, Timothy L TN2018-07-24 active