Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4ZGO callsign genealogy
Currently held by Neergaard, Sherry G
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 KK4ZGO's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4ZGO.
- Neergaard, Sherry GTNgranted 2014-04-01cancelled 2026-04-02