Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4OT callsign genealogy
Currently held by Old Times Ham Radio Club
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 KM4OT's current licensee, walking backwards.
- KN4UECcancelledOld Times Ham Radio ClubNCgranted 2019-04-25cancelled 2019-05-14
Successor callsigns
Callsigns held now by people who previously held KM4OT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KM4OT, oldest first.
- SAMPSON, ANDREW E FL1989-08-08 → cancelled 2001-08-09
- Old Times Ham Radio Club NC2019-05-14 active