Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1COG callsign genealogy
Currently held by RICHARDSON, DONALD 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 W1COG's current licensee, walking backwards.
- Richardson Jr, Donald ANHgranted 2012-11-09cancelled 2020-08-08
Successor callsigns
Callsigns held now by people who previously held W1COG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1COG, oldest first.
- RICHARDSON, DONALD A ME2017-12-18 → cancelled 2020-06-23
- Richardson Jr, Donald A NH2020-08-08 active