Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AD0CN callsign genealogy
Currently held by Cottrill, Larry B
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 AD0CN's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AD0CN.
- Cottrill, Larry BIAgranted 2019-11-27