Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NZ8O callsign genealogy
Currently held by Coffman, Ray D
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 NZ8O's current licensee, walking backwards.
- Coffman, Ray DOKgranted 2019-12-12cancelled 2021-06-25
Successor callsigns
Callsigns held now by people who previously held NZ8O.
- BENNETT, RICHARD TOHgranted 2016-08-12
All historical holders
Every license row we've seen with the callsign NZ8O, oldest first.
- WASHTENAW AMATEUR RADIO TRANSMITTING SOC MI2009-06-02 → cancelled 2021-06-03
- Coffman, Ray D OK2021-06-25 active