Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3LTR callsign genealogy
Currently held by WINDMILL AMATEUR RADIO GROUP
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 W3LTR's current licensee, walking backwards.
- KC3MNFcancelledTHE 665 AMATEUR RADIO FORUM GROUPPAgranted 2018-11-30cancelled 2018-12-27
Successor callsigns
Callsigns held now by people who previously held W3LTR.
No current licensee on record previously held this callsign.