Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CKF callsign genealogy
Currently held by Downs, Timothy J
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 W0CKF's current licensee, walking backwards.
- Downs, Timothy JKSgranted 2018-02-23cancelled 2018-03-16
Successor callsigns
Callsigns held now by people who previously held W0CKF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CKF, oldest first.
- MINNEAPOLIS RADIO CLUB MN2002-09-06 → cancelled 2014-09-04
- Downs, Timothy J KS2018-03-16 active