Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NT8A callsign genealogy
Currently held by Koren, John R
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 NT8A's current licensee, walking backwards.
- Koren, John RNYgranted 2001-08-14cancelled 2001-09-05
Successor callsigns
Callsigns held now by people who previously held NT8A.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NT8A, oldest first.
- Koren, John R OH2021-11-02 active
- —— → cancelled 1999-04-28