Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NT4K callsign genealogy
Currently held by Young, Franklin 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 NT4K's current licensee, walking backwards.
- McCormick, James CFLgranted 2007-05-10cancelled 2010-03-12
Successor callsigns
Callsigns held now by people who previously held NT4K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NT4K, oldest first.
- Young, Franklin A NC1999-11-19 → cancelled 2008-02-19
- McCormick, James C FL2019-12-30 active