What is the CTAF frequency at 4N7?

Greene Airport's CTAF frequency is 122.8.

Greene Airport frequencies

Radio frequencies for Greene Airport (4N7) in Greene, NY — tower, ground, ATIS, CTAF, and approach/departure for your radio setup.

CTAF	122.8
UNICOM	122.8

Frequencies from FAA NASR. For planning and education only; always verify against official sources.