Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DOA callsign genealogy
Currently held by Herring, Robert J
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 N4DOA's current licensee, walking backwards.
- Edmondson, Brian RNCgranted 2017-06-26cancelled 2019-06-07
Successor callsigns
Callsigns held now by people who previously held N4DOA.
- Edmondson, Brian RNCgranted 2025-06-10
All historical holders
Every license row we've seen with the callsign N4DOA, oldest first.
- Herring, Robert J FL2005-02-25 → cancelled 2017-05-25
- Edmondson, Brian R NC2019-06-07 → cancelled 2025-06-10