Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AD7OI callsign genealogy
Currently held by Jacobson, Kevin W
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 AD7OI's current licensee, walking backwards.
- Jacobson, Kevin WAZgranted 2007-03-21cancelled 2007-06-12
Successor callsigns
Callsigns held now by people who previously held AD7OI.
No current licensee on record previously held this callsign.