AS7256 166.78.0.0/21 CIDR and IP Range Summary.ASN: 7256 - Viacom Inc.Host Count: 2046Addressable IPs: 2048166.78.0.0/24166.78.1.0/24166.78.2.0/24166.78.3.0/24166.78.4.0/24166.78.5.0/24166.78.6.0/24166.78.7.0/24