Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI5FI callsign genealogy
Currently held by Wireless Frontier Internet Amateur Radio Club
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 WI5FI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WI5FI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WI5FI, oldest first.
- Wireless Frontier Internet Amateur Radio Club TX2004-04-30 → cancelled 2016-05-03
- Ballesteros, Michael S TX2017-04-01 active