AS19957 66.4.254.0/24 CIDR and IP Range Summary.ASN: 19957 - AT&T Corp.Host Count: 254Addressable IPs: 256 66.4.254.066.4.254.166.4.254.266.4.254.366.4.254.466.4.254.566.4.254.666.4.254.766.4.254.866.4.254.966.4.254.1066.4.254.1166.4.254.1266.4.254.1366.4.254.1466.4.254.1566.4.254.1666.4.254.1766.4.254.1866.4.254.1966.4.254.2066.4.254.2166.4.254.2266.4.254.2366.4.254.2466.4.254.2566.4.254.2666.4.254.2766.4.254.2866.4.254.2966.4.254.3066.4.254.3166.4.254.3266.4.254.3366.4.254.3466.4.254.3566.4.254.3666.4.254.3766.4.254.3866.4.254.3966.4.254.4066.4.254.4166.4.254.4266.4.254.4366.4.254.4466.4.254.4566.4.254.4666.4.254.4766.4.254.4866.4.254.4966.4.254.5066.4.254.5166.4.254.5266.4.254.5366.4.254.5466.4.254.5566.4.254.5666.4.254.5766.4.254.5866.4.254.5966.4.254.6066.4.254.6166.4.254.6266.4.254.6366.4.254.6466.4.254.6566.4.254.6666.4.254.6766.4.254.6866.4.254.6966.4.254.7066.4.254.7166.4.254.7266.4.254.7366.4.254.7466.4.254.7566.4.254.7666.4.254.7766.4.254.7866.4.254.7966.4.254.8066.4.254.8166.4.254.8266.4.254.8366.4.254.8466.4.254.8566.4.254.8666.4.254.8766.4.254.8866.4.254.8966.4.254.9066.4.254.9166.4.254.9266.4.254.9366.4.254.9466.4.254.9566.4.254.9666.4.254.9766.4.254.9866.4.254.9966.4.254.10066.4.254.10166.4.254.10266.4.254.10366.4.254.10466.4.254.10566.4.254.10666.4.254.10766.4.254.10866.4.254.10966.4.254.11066.4.254.11166.4.254.11266.4.254.11366.4.254.11466.4.254.11566.4.254.11666.4.254.11766.4.254.11866.4.254.11966.4.254.12066.4.254.12166.4.254.12266.4.254.12366.4.254.12466.4.254.12566.4.254.12666.4.254.12766.4.254.12866.4.254.12966.4.254.13066.4.254.13166.4.254.13266.4.254.13366.4.254.13466.4.254.13566.4.254.13666.4.254.13766.4.254.13866.4.254.13966.4.254.14066.4.254.14166.4.254.14266.4.254.14366.4.254.14466.4.254.14566.4.254.14666.4.254.14766.4.254.14866.4.254.14966.4.254.15066.4.254.15166.4.254.15266.4.254.15366.4.254.15466.4.254.15566.4.254.15666.4.254.15766.4.254.15866.4.254.15966.4.254.16066.4.254.16166.4.254.16266.4.254.16366.4.254.16466.4.254.16566.4.254.16666.4.254.16766.4.254.16866.4.254.16966.4.254.17066.4.254.17166.4.254.17266.4.254.17366.4.254.17466.4.254.17566.4.254.17666.4.254.17766.4.254.17866.4.254.17966.4.254.18066.4.254.18166.4.254.18266.4.254.18366.4.254.18466.4.254.18566.4.254.18666.4.254.18766.4.254.18866.4.254.18966.4.254.19066.4.254.19166.4.254.19266.4.254.19366.4.254.19466.4.254.19566.4.254.19666.4.254.19766.4.254.19866.4.254.19966.4.254.20066.4.254.20166.4.254.20266.4.254.20366.4.254.20466.4.254.20566.4.254.20666.4.254.20766.4.254.20866.4.254.20966.4.254.21066.4.254.21166.4.254.21266.4.254.21366.4.254.21466.4.254.21566.4.254.21666.4.254.21766.4.254.21866.4.254.21966.4.254.22066.4.254.22166.4.254.22266.4.254.22366.4.254.22466.4.254.22566.4.254.22666.4.254.22766.4.254.22866.4.254.22966.4.254.23066.4.254.23166.4.254.23266.4.254.23366.4.254.23466.4.254.23566.4.254.23666.4.254.23766.4.254.23866.4.254.23966.4.254.24066.4.254.24166.4.254.24266.4.254.24366.4.254.24466.4.254.24566.4.254.24666.4.254.24766.4.254.24866.4.254.24966.4.254.25066.4.254.25166.4.254.25266.4.254.25366.4.254.25466.4.254.255