What is the CTAF frequency at 5V4?

Calhan Airport's CTAF frequency is 122.725.

Calhan Airport frequencies

Radio frequencies for Calhan Airport (5V4) in Calhan, CO — tower, ground, ATIS, CTAF, and approach/departure for your radio setup.

CTAF	122.725
UNICOM	122.725

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