Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TLL callsign genealogy
Currently held by PENNINGER, CHARLES 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 K4TLL's current licensee, walking backwards.
- PENNINGER, CHARLES RTNgranted 2023-02-10cancelled 2023-04-04
Successor callsigns
Callsigns held now by people who previously held K4TLL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TLL, oldest first.
- LINEBERRY, THOMAS L VA2008-07-11 → cancelled 2020-10-06
- PENNINGER, CHARLES R TN2023-04-04 active