Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK2O callsign genealogy
Currently held by RUGGIERO, MARCO P
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 KK2O's current licensee, walking backwards.
- Neilson, Randy LCOgranted 2007-07-23cancelled 2008-08-29
Successor callsigns
Callsigns held now by people who previously held KK2O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK2O, oldest first.
- RUGGIERO, MARCO P NY1995-11-28 → cancelled 2007-11-29
- Neilson, Randy L CO2018-06-13 active