Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI0P callsign genealogy
Currently held by BROWN, DOUGLAS D
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 WI0P's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WI0P.
- Steele, Daniel JMNgranted 2020-08-01cancelled 2022-05-06
All historical holders
Every license row we've seen with the callsign WI0P, oldest first.
- BROWN, DOUGLAS D CO2008-03-28 → cancelled 2020-04-24
- Steele, Daniel J MN2020-06-26 → cancelled 2020-08-01
- Cook, Eric A MO2022-09-24 active