AS23520 63.245.24.0/21 CIDR and IP Range Summary.ASN: 23520 - Columbus Networks USA Inc.Host Count: 2046Addressable IPs: 204863.245.24.0/2463.245.25.0/2463.245.26.0/2463.245.27.0/2463.245.28.0/2463.245.29.0/2463.245.30.0/2463.245.31.0/24