Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3FDK callsign genealogy
Currently held by Frederick Amateur Repeater Group
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 W3FDK's current licensee, walking backwards.
- KB3YBHcancelledFrederick Amateur Repeater GroupMDgranted 2012-02-13cancelled 2020-10-23
Successor callsigns
Callsigns held now by people who previously held W3FDK.
- CLARK, ROLAN OMDgranted 2018-07-13
All historical holders
Every license row we've seen with the callsign W3FDK, oldest first.
- CLARK, ROLAN O MD2014-05-01 → cancelled 2018-07-13
- Frederick Amateur Repeater Group MD2020-10-23 active