Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DVB callsign genealogy
Currently held by VAN OOSTROM, HANS
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 K4DVB's current licensee, walking backwards.
- VAN OOSTROM, HANSFLgranted 2003-11-19cancelled 2004-02-28
Successor callsigns
Callsigns held now by people who previously held K4DVB.
No current licensee on record previously held this callsign.