Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI7BO callsign genealogy
Currently held by Campbell, Nathan T
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 AI7BO's current licensee, walking backwards.
- Campbell, Nathan TORgranted 2020-03-25cancelled 2020-06-26
Successor callsigns
Callsigns held now by people who previously held AI7BO.
- Campbell, Nathan TORgranted 2020-07-17