Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0OP callsign genealogy
Currently held by KOOP, KEITH L
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 K0OP's current licensee, walking backwards.
- Lee, Steven DNDgranted 2017-12-28cancelled 2018-11-24
Successor callsigns
Callsigns held now by people who previously held K0OP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0OP, oldest first.
- KOOP, KEITH L KS2006-10-06 → cancelled 2018-11-06
- Lee, Steven D ND2018-11-24 active