Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB7OI callsign genealogy
Currently held by COTTRELL, JAMES R
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 AB7OI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB7OI.
No current licensee on record previously held this callsign.