Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4KLO callsign genealogy
Currently held by SPENCER, TIMOTHY G
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 KI4KLO's current licensee, walking backwards.
- SPENCER, TIMOTHY GNCgranted 2022-04-11cancelled 2022-05-14
Successor callsigns
Callsigns held now by people who previously held KI4KLO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI4KLO, oldest first.
- SPENCER, TIMOTHY G NC2005-06-06 → cancelled 2017-06-07
- SPENCER, TIMOTHY G NC2022-05-14 active