Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K2GPU callsign genealogy
Currently held by DeFilippis Jr, Mark J
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 K2GPU's current licensee, walking backwards.
- DeFilippis Jr, Mark JNYgranted 2000-06-28cancelled 2000-07-28
Successor callsigns
Callsigns held now by people who previously held K2GPU.
- DeFilippis Jr, Mark JNYgranted 2010-06-05cancelled 2022-08-16