Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KC0GUO callsign genealogy
Currently held by Greenblatt, Robert
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 KC0GUO's current licensee, walking backwards.
- GREENBLATT, ROBERTCOgranted 1999-07-12cancelled 1999-11-25
Successor callsigns
Callsigns held now by people who previously held KC0GUO.
No current licensee on record previously held this callsign.