Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OIL callsign genealogy
Currently held by RAMSEY, DAVID H
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 W4OIL's current licensee, walking backwards.
- RAMSEY, DAVID HNCgranted 2009-08-14cancelled 2015-09-29
Successor callsigns
Callsigns held now by people who previously held W4OIL.
No current licensee on record previously held this callsign.