AS17231 12.66.66.0/24 CIDR and IP Range Summary.ASN: 17231 - AT&T Enhanced Network ServicesHost Count: 254Addressable IPs: 256 12.66.66.012.66.66.112.66.66.212.66.66.312.66.66.412.66.66.512.66.66.612.66.66.712.66.66.812.66.66.912.66.66.1012.66.66.1112.66.66.1212.66.66.1312.66.66.1412.66.66.1512.66.66.1612.66.66.1712.66.66.1812.66.66.1912.66.66.2012.66.66.2112.66.66.2212.66.66.2312.66.66.2412.66.66.2512.66.66.2612.66.66.2712.66.66.2812.66.66.2912.66.66.3012.66.66.3112.66.66.3212.66.66.3312.66.66.3412.66.66.3512.66.66.3612.66.66.3712.66.66.3812.66.66.3912.66.66.4012.66.66.4112.66.66.4212.66.66.4312.66.66.4412.66.66.4512.66.66.4612.66.66.4712.66.66.4812.66.66.4912.66.66.5012.66.66.5112.66.66.5212.66.66.5312.66.66.5412.66.66.5512.66.66.5612.66.66.5712.66.66.5812.66.66.5912.66.66.6012.66.66.6112.66.66.6212.66.66.6312.66.66.6412.66.66.6512.66.66.6612.66.66.6712.66.66.6812.66.66.6912.66.66.7012.66.66.7112.66.66.7212.66.66.7312.66.66.7412.66.66.7512.66.66.7612.66.66.7712.66.66.7812.66.66.7912.66.66.8012.66.66.8112.66.66.8212.66.66.8312.66.66.8412.66.66.8512.66.66.8612.66.66.8712.66.66.8812.66.66.8912.66.66.9012.66.66.9112.66.66.9212.66.66.9312.66.66.9412.66.66.9512.66.66.9612.66.66.9712.66.66.9812.66.66.9912.66.66.10012.66.66.10112.66.66.10212.66.66.10312.66.66.10412.66.66.10512.66.66.10612.66.66.10712.66.66.10812.66.66.10912.66.66.11012.66.66.11112.66.66.11212.66.66.11312.66.66.11412.66.66.11512.66.66.11612.66.66.11712.66.66.11812.66.66.11912.66.66.12012.66.66.12112.66.66.12212.66.66.12312.66.66.12412.66.66.12512.66.66.12612.66.66.12712.66.66.12812.66.66.12912.66.66.13012.66.66.13112.66.66.13212.66.66.13312.66.66.13412.66.66.13512.66.66.13612.66.66.13712.66.66.13812.66.66.13912.66.66.14012.66.66.14112.66.66.14212.66.66.14312.66.66.14412.66.66.14512.66.66.14612.66.66.14712.66.66.14812.66.66.14912.66.66.15012.66.66.15112.66.66.15212.66.66.15312.66.66.15412.66.66.15512.66.66.15612.66.66.15712.66.66.15812.66.66.15912.66.66.16012.66.66.16112.66.66.16212.66.66.16312.66.66.16412.66.66.16512.66.66.16612.66.66.16712.66.66.16812.66.66.16912.66.66.17012.66.66.17112.66.66.17212.66.66.17312.66.66.17412.66.66.17512.66.66.17612.66.66.17712.66.66.17812.66.66.17912.66.66.18012.66.66.18112.66.66.18212.66.66.18312.66.66.18412.66.66.18512.66.66.18612.66.66.18712.66.66.18812.66.66.18912.66.66.19012.66.66.19112.66.66.19212.66.66.19312.66.66.19412.66.66.19512.66.66.19612.66.66.19712.66.66.19812.66.66.19912.66.66.20012.66.66.20112.66.66.20212.66.66.20312.66.66.20412.66.66.20512.66.66.20612.66.66.20712.66.66.20812.66.66.20912.66.66.21012.66.66.21112.66.66.21212.66.66.21312.66.66.21412.66.66.21512.66.66.21612.66.66.21712.66.66.21812.66.66.21912.66.66.22012.66.66.22112.66.66.22212.66.66.22312.66.66.22412.66.66.22512.66.66.22612.66.66.22712.66.66.22812.66.66.22912.66.66.23012.66.66.23112.66.66.23212.66.66.23312.66.66.23412.66.66.23512.66.66.23612.66.66.23712.66.66.23812.66.66.23912.66.66.24012.66.66.24112.66.66.24212.66.66.24312.66.66.24412.66.66.24512.66.66.24612.66.66.24712.66.66.24812.66.66.24912.66.66.25012.66.66.25112.66.66.25212.66.66.25312.66.66.25412.66.66.255