AS19957 66.4.56.0/24 CIDR and IP Range Summary.ASN: 19957 - AT&T Corp.Host Count: 254Addressable IPs: 256 66.4.56.066.4.56.166.4.56.266.4.56.366.4.56.466.4.56.566.4.56.666.4.56.766.4.56.866.4.56.966.4.56.1066.4.56.1166.4.56.1266.4.56.1366.4.56.1466.4.56.1566.4.56.1666.4.56.1766.4.56.1866.4.56.1966.4.56.2066.4.56.2166.4.56.2266.4.56.2366.4.56.2466.4.56.2566.4.56.2666.4.56.2766.4.56.2866.4.56.2966.4.56.3066.4.56.3166.4.56.3266.4.56.3366.4.56.3466.4.56.3566.4.56.3666.4.56.3766.4.56.3866.4.56.3966.4.56.4066.4.56.4166.4.56.4266.4.56.4366.4.56.4466.4.56.4566.4.56.4666.4.56.4766.4.56.4866.4.56.4966.4.56.5066.4.56.5166.4.56.5266.4.56.5366.4.56.5466.4.56.5566.4.56.5666.4.56.5766.4.56.5866.4.56.5966.4.56.6066.4.56.6166.4.56.6266.4.56.6366.4.56.6466.4.56.6566.4.56.6666.4.56.6766.4.56.6866.4.56.6966.4.56.7066.4.56.7166.4.56.7266.4.56.7366.4.56.7466.4.56.7566.4.56.7666.4.56.7766.4.56.7866.4.56.7966.4.56.8066.4.56.8166.4.56.8266.4.56.8366.4.56.8466.4.56.8566.4.56.8666.4.56.8766.4.56.8866.4.56.8966.4.56.9066.4.56.9166.4.56.9266.4.56.9366.4.56.9466.4.56.9566.4.56.9666.4.56.9766.4.56.9866.4.56.9966.4.56.10066.4.56.10166.4.56.10266.4.56.10366.4.56.10466.4.56.10566.4.56.10666.4.56.10766.4.56.10866.4.56.10966.4.56.11066.4.56.11166.4.56.11266.4.56.11366.4.56.11466.4.56.11566.4.56.11666.4.56.11766.4.56.11866.4.56.11966.4.56.12066.4.56.12166.4.56.12266.4.56.12366.4.56.12466.4.56.12566.4.56.12666.4.56.12766.4.56.12866.4.56.12966.4.56.13066.4.56.13166.4.56.13266.4.56.13366.4.56.13466.4.56.13566.4.56.13666.4.56.13766.4.56.13866.4.56.13966.4.56.14066.4.56.14166.4.56.14266.4.56.14366.4.56.14466.4.56.14566.4.56.14666.4.56.14766.4.56.14866.4.56.14966.4.56.15066.4.56.15166.4.56.15266.4.56.15366.4.56.15466.4.56.15566.4.56.15666.4.56.15766.4.56.15866.4.56.15966.4.56.16066.4.56.16166.4.56.16266.4.56.16366.4.56.16466.4.56.16566.4.56.16666.4.56.16766.4.56.16866.4.56.16966.4.56.17066.4.56.17166.4.56.17266.4.56.17366.4.56.17466.4.56.17566.4.56.17666.4.56.17766.4.56.17866.4.56.17966.4.56.18066.4.56.18166.4.56.18266.4.56.18366.4.56.18466.4.56.18566.4.56.18666.4.56.18766.4.56.18866.4.56.18966.4.56.19066.4.56.19166.4.56.19266.4.56.19366.4.56.19466.4.56.19566.4.56.19666.4.56.19766.4.56.19866.4.56.19966.4.56.20066.4.56.20166.4.56.20266.4.56.20366.4.56.20466.4.56.20566.4.56.20666.4.56.20766.4.56.20866.4.56.20966.4.56.21066.4.56.21166.4.56.21266.4.56.21366.4.56.21466.4.56.21566.4.56.21666.4.56.21766.4.56.21866.4.56.21966.4.56.22066.4.56.22166.4.56.22266.4.56.22366.4.56.22466.4.56.22566.4.56.22666.4.56.22766.4.56.22866.4.56.22966.4.56.23066.4.56.23166.4.56.23266.4.56.23366.4.56.23466.4.56.23566.4.56.23666.4.56.23766.4.56.23866.4.56.23966.4.56.24066.4.56.24166.4.56.24266.4.56.24366.4.56.24466.4.56.24566.4.56.24666.4.56.24766.4.56.24866.4.56.24966.4.56.25066.4.56.25166.4.56.25266.4.56.25366.4.56.25466.4.56.255