Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0LON callsign genealogy
Currently held by Lewis, Mark
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 K0LON's current licensee, walking backwards.
- Lewis, MarkKSgranted 2020-03-16cancelled 2022-02-01
Successor callsigns
Callsigns held now by people who previously held K0LON.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0LON, oldest first.
- WHISHER, LONNIE J KS2008-01-04 → cancelled 2020-01-07
- Lewis, Mark KS2022-02-01 active