Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4BDR callsign genealogy
Currently held by BALLENGER, MARTIN 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 N4BDR's current licensee, walking backwards.
- Roberts, Berlon DFLgranted 2025-12-18cancelled 2026-01-10
Successor callsigns
Callsigns held now by people who previously held N4BDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4BDR, oldest first.
- BALLENGER, MARTIN A SC2012-06-07 → cancelled 2024-06-08
- Roberts, Berlon D TN2026-01-10 active