Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N2OT callsign genealogy
Currently held by CHENG, PING M
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 N2OT's current licensee, walking backwards.
- KATH, GARY SNJgranted 1993-06-15cancelled 1999-11-18
Successor callsigns
Callsigns held now by people who previously held N2OT.
- CHENG, PING MNYgranted 2017-09-12
All historical holders
Every license row we've seen with the callsign N2OT, oldest first.
- KATH, GARY S NJ2019-09-04 active
- CHENG, PING M— → cancelled 1997-10-15