Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4GIS callsign genealogy
Currently held by Samson, Scott A
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 KI4GIS's current licensee, walking backwards.
- Samson, Scott AMSgranted 2011-05-03cancelled 2015-03-13
Successor callsigns
Callsigns held now by people who previously held KI4GIS.
- O Keefe, John PFLgranted 2004-08-03cancelled 2016-08-04
All historical holders
Every license row we've seen with the callsign KI4GIS, oldest first.
- O Keefe, John P FL2004-07-15 → cancelled 2004-08-03
- Samson, Scott A SC2025-04-18 active