Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4RFQ callsign genealogy
Currently held by BROCK, DANIEL
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 WB4RFQ's current licensee, walking backwards.
- Brock, John DORgranted 2014-03-19cancelled 2014-05-02
Successor callsigns
Callsigns held now by people who previously held WB4RFQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB4RFQ, oldest first.
- BROCK, JOHN D NC1996-07-24 → cancelled 2008-07-25
- BROCK, DANIEL PA2024-07-26 active