Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4HOW callsign genealogy
Currently held by Santos, Renato 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 W4HOW's current licensee, walking backwards.
- Santos, Renato OSCgranted 2019-01-02cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held W4HOW.
No current licensee on record previously held this callsign.