Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DOB callsign genealogy
Currently held by BROCK, DAVID O
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 W4DOB's current licensee, walking backwards.
- BROCK, DAVID OALgranted 2007-11-10cancelled 2012-02-14
Successor callsigns
Callsigns held now by people who previously held W4DOB.
No current licensee on record previously held this callsign.