Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W9UIJ callsign genealogy
Currently held by LARSON mr, KARL A
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 W9UIJ's current licensee, walking backwards.
- LARSON, KARL AILgranted 2001-03-21cancelled 2003-01-03
Successor callsigns
Callsigns held now by people who previously held W9UIJ.
No current licensee on record previously held this callsign.