Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1HTO callsign genealogy
Currently held by HAMTESTONLINE AMATEUR RADIO CLUB
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 N1HTO's current licensee, walking backwards.
- KF7ZQRcancelledHAMTESTONLINE AMATEUR RADIO CLUBAZgranted 2012-11-26cancelled 2012-12-27
Successor callsigns
Callsigns held now by people who previously held N1HTO.
- TRZESNIOWSKI, FRANK JCTgranted 2011-01-20cancelled 2023-04-04