Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7IOW callsign genealogy
Currently held by HALVORSON, LEIF E
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 W7IOW's current licensee, walking backwards.
- HALVORSON, LEIF EMTgranted 2008-07-23cancelled 2012-08-24
Successor callsigns
Callsigns held now by people who previously held W7IOW.
No current licensee on record previously held this callsign.