AS17231 12.66.91.0/24 CIDR and IP Range Summary.ASN: 17231 - AT&T Enhanced Network ServicesHost Count: 254Addressable IPs: 256 12.66.91.012.66.91.112.66.91.212.66.91.312.66.91.412.66.91.512.66.91.612.66.91.712.66.91.812.66.91.912.66.91.1012.66.91.1112.66.91.1212.66.91.1312.66.91.1412.66.91.1512.66.91.1612.66.91.1712.66.91.1812.66.91.1912.66.91.2012.66.91.2112.66.91.2212.66.91.2312.66.91.2412.66.91.2512.66.91.2612.66.91.2712.66.91.2812.66.91.2912.66.91.3012.66.91.3112.66.91.3212.66.91.3312.66.91.3412.66.91.3512.66.91.3612.66.91.3712.66.91.3812.66.91.3912.66.91.4012.66.91.4112.66.91.4212.66.91.4312.66.91.4412.66.91.4512.66.91.4612.66.91.4712.66.91.4812.66.91.4912.66.91.5012.66.91.5112.66.91.5212.66.91.5312.66.91.5412.66.91.5512.66.91.5612.66.91.5712.66.91.5812.66.91.5912.66.91.6012.66.91.6112.66.91.6212.66.91.6312.66.91.6412.66.91.6512.66.91.6612.66.91.6712.66.91.6812.66.91.6912.66.91.7012.66.91.7112.66.91.7212.66.91.7312.66.91.7412.66.91.7512.66.91.7612.66.91.7712.66.91.7812.66.91.7912.66.91.8012.66.91.8112.66.91.8212.66.91.8312.66.91.8412.66.91.8512.66.91.8612.66.91.8712.66.91.8812.66.91.8912.66.91.9012.66.91.9112.66.91.9212.66.91.9312.66.91.9412.66.91.9512.66.91.9612.66.91.9712.66.91.9812.66.91.9912.66.91.10012.66.91.10112.66.91.10212.66.91.10312.66.91.10412.66.91.10512.66.91.10612.66.91.10712.66.91.10812.66.91.10912.66.91.11012.66.91.11112.66.91.11212.66.91.11312.66.91.11412.66.91.11512.66.91.11612.66.91.11712.66.91.11812.66.91.11912.66.91.12012.66.91.12112.66.91.12212.66.91.12312.66.91.12412.66.91.12512.66.91.12612.66.91.12712.66.91.12812.66.91.12912.66.91.13012.66.91.13112.66.91.13212.66.91.13312.66.91.13412.66.91.13512.66.91.13612.66.91.13712.66.91.13812.66.91.13912.66.91.14012.66.91.14112.66.91.14212.66.91.14312.66.91.14412.66.91.14512.66.91.14612.66.91.14712.66.91.14812.66.91.14912.66.91.15012.66.91.15112.66.91.15212.66.91.15312.66.91.15412.66.91.15512.66.91.15612.66.91.15712.66.91.15812.66.91.15912.66.91.16012.66.91.16112.66.91.16212.66.91.16312.66.91.16412.66.91.16512.66.91.16612.66.91.16712.66.91.16812.66.91.16912.66.91.17012.66.91.17112.66.91.17212.66.91.17312.66.91.17412.66.91.17512.66.91.17612.66.91.17712.66.91.17812.66.91.17912.66.91.18012.66.91.18112.66.91.18212.66.91.18312.66.91.18412.66.91.18512.66.91.18612.66.91.18712.66.91.18812.66.91.18912.66.91.19012.66.91.19112.66.91.19212.66.91.19312.66.91.19412.66.91.19512.66.91.19612.66.91.19712.66.91.19812.66.91.19912.66.91.20012.66.91.20112.66.91.20212.66.91.20312.66.91.20412.66.91.20512.66.91.20612.66.91.20712.66.91.20812.66.91.20912.66.91.21012.66.91.21112.66.91.21212.66.91.21312.66.91.21412.66.91.21512.66.91.21612.66.91.21712.66.91.21812.66.91.21912.66.91.22012.66.91.22112.66.91.22212.66.91.22312.66.91.22412.66.91.22512.66.91.22612.66.91.22712.66.91.22812.66.91.22912.66.91.23012.66.91.23112.66.91.23212.66.91.23312.66.91.23412.66.91.23512.66.91.23612.66.91.23712.66.91.23812.66.91.23912.66.91.24012.66.91.24112.66.91.24212.66.91.24312.66.91.24412.66.91.24512.66.91.24612.66.91.24712.66.91.24812.66.91.24912.66.91.25012.66.91.25112.66.91.25212.66.91.25312.66.91.25412.66.91.255