AS23520 69.79.72.0/21 CIDR and IP Range Summary.ASN: 23520 - Columbus Networks USA Inc.Host Count: 2046Addressable IPs: 204869.79.72.0/2469.79.73.0/2469.79.74.0/2469.79.75.0/2469.79.76.0/2469.79.77.0/2469.79.78.0/2469.79.79.0/24