Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9GOP callsign genealogy
Currently held by Helding, Gregory T
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 K9GOP's current licensee, walking backwards.
- HELDING, GREGORY TWIgranted 1997-10-06cancelled 2002-08-16
Successor callsigns
Callsigns held now by people who previously held K9GOP.
- Helding, Gregory TWIgranted 2022-08-05cancelled 2023-05-31