Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WN4GUS callsign genealogy
Currently held by QUIHUIS III, EFRAIN M
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 WN4GUS's current licensee, walking backwards.
- QUIHUIS III, EFRAIN MAZgranted 2010-09-17cancelled 2010-10-19
Successor callsigns
Callsigns held now by people who previously held WN4GUS.
No current licensee on record previously held this callsign.