Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD6M callsign genealogy
Currently held by Cook, Ryan 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 AD6M's current licensee, walking backwards.
- Cook, Ryan ATNgranted 2015-04-20cancelled 2017-06-06
Successor callsigns
Callsigns held now by people who previously held AD6M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD6M, oldest first.
- DAVENPORT, PAUL L CA2005-07-14 → cancelled 2017-05-18
- Cook, Ryan A TN2017-06-06 active