Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3KIW callsign genealogy
Currently held by MONTALVO, MICHAEL R
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 W3KIW's current licensee, walking backwards.
- MONTALVO, MICHAEL RNCgranted 2018-03-16cancelled 2018-04-27
Successor callsigns
Callsigns held now by people who previously held W3KIW.
No current licensee on record previously held this callsign.