Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NL7CO callsign genealogy
Currently held by ROSS, DONALD M
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 NL7CO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NL7CO.
All historical holders
Every license row we've seen with the callsign NL7CO, oldest first.
- ROSS, DONALD M OK1999-06-30 → cancelled 2006-06-06
- ROSS, DONALD M OK2007-07-03 → cancelled 2017-01-10
- ROSS, DONALD M OK2017-04-01 → cancelled 2017-10-24
- ROSS, DONALD M OK2024-02-21 active