AS23520 67.230.112.0/21 CIDR and IP Range Summary.ASN: 23520 - Columbus Networks USA Inc.Host Count: 2046Addressable IPs: 204867.230.112.0/2467.230.113.0/2467.230.114.0/2467.230.115.0/2467.230.116.0/2467.230.117.0/2467.230.118.0/2467.230.119.0/24