Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4ISI callsign genealogy
Currently held by HOAD, DAVID L
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 W4ISI's current licensee, walking backwards.
- HOAD, DAVID LVAgranted 1998-03-05cancelled 2006-03-24
Successor callsigns
Callsigns held now by people who previously held W4ISI.
No current licensee on record previously held this callsign.