Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NT0P callsign genealogy
Currently held by Ton, John E
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 NT0P's current licensee, walking backwards.
- Ton, John ECOgranted 2004-04-20cancelled 2005-03-08
Successor callsigns
Callsigns held now by people who previously held NT0P.
- REICHER, JAMES LMOgranted 2001-06-26cancelled 2002-03-06
All historical holders
Every license row we've seen with the callsign NT0P, oldest first.
- REICHER, JAMES L MO1999-03-17 → cancelled 2001-06-26
- Ton, John E CO2025-03-04 active