AS7018 12.72.221.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.72.221.012.72.221.112.72.221.212.72.221.312.72.221.412.72.221.512.72.221.612.72.221.712.72.221.812.72.221.912.72.221.1012.72.221.1112.72.221.1212.72.221.1312.72.221.1412.72.221.1512.72.221.1612.72.221.1712.72.221.1812.72.221.1912.72.221.2012.72.221.2112.72.221.2212.72.221.2312.72.221.2412.72.221.2512.72.221.2612.72.221.2712.72.221.2812.72.221.2912.72.221.3012.72.221.3112.72.221.3212.72.221.3312.72.221.3412.72.221.3512.72.221.3612.72.221.3712.72.221.3812.72.221.3912.72.221.4012.72.221.4112.72.221.4212.72.221.4312.72.221.4412.72.221.4512.72.221.4612.72.221.4712.72.221.4812.72.221.4912.72.221.5012.72.221.5112.72.221.5212.72.221.5312.72.221.5412.72.221.5512.72.221.5612.72.221.5712.72.221.5812.72.221.5912.72.221.6012.72.221.6112.72.221.6212.72.221.6312.72.221.6412.72.221.6512.72.221.6612.72.221.6712.72.221.6812.72.221.6912.72.221.7012.72.221.7112.72.221.7212.72.221.7312.72.221.7412.72.221.7512.72.221.7612.72.221.7712.72.221.7812.72.221.7912.72.221.8012.72.221.8112.72.221.8212.72.221.8312.72.221.8412.72.221.8512.72.221.8612.72.221.8712.72.221.8812.72.221.8912.72.221.9012.72.221.9112.72.221.9212.72.221.9312.72.221.9412.72.221.9512.72.221.9612.72.221.9712.72.221.9812.72.221.9912.72.221.10012.72.221.10112.72.221.10212.72.221.10312.72.221.10412.72.221.10512.72.221.10612.72.221.10712.72.221.10812.72.221.10912.72.221.11012.72.221.11112.72.221.11212.72.221.11312.72.221.11412.72.221.11512.72.221.11612.72.221.11712.72.221.11812.72.221.11912.72.221.12012.72.221.12112.72.221.12212.72.221.12312.72.221.12412.72.221.12512.72.221.12612.72.221.12712.72.221.12812.72.221.12912.72.221.13012.72.221.13112.72.221.13212.72.221.13312.72.221.13412.72.221.13512.72.221.13612.72.221.13712.72.221.13812.72.221.13912.72.221.14012.72.221.14112.72.221.14212.72.221.14312.72.221.14412.72.221.14512.72.221.14612.72.221.14712.72.221.14812.72.221.14912.72.221.15012.72.221.15112.72.221.15212.72.221.15312.72.221.15412.72.221.15512.72.221.15612.72.221.15712.72.221.15812.72.221.15912.72.221.16012.72.221.16112.72.221.16212.72.221.16312.72.221.16412.72.221.16512.72.221.16612.72.221.16712.72.221.16812.72.221.16912.72.221.17012.72.221.17112.72.221.17212.72.221.17312.72.221.17412.72.221.17512.72.221.17612.72.221.17712.72.221.17812.72.221.17912.72.221.18012.72.221.18112.72.221.18212.72.221.18312.72.221.18412.72.221.18512.72.221.18612.72.221.18712.72.221.18812.72.221.18912.72.221.19012.72.221.19112.72.221.19212.72.221.19312.72.221.19412.72.221.19512.72.221.19612.72.221.19712.72.221.19812.72.221.19912.72.221.20012.72.221.20112.72.221.20212.72.221.20312.72.221.20412.72.221.20512.72.221.20612.72.221.20712.72.221.20812.72.221.20912.72.221.21012.72.221.21112.72.221.21212.72.221.21312.72.221.21412.72.221.21512.72.221.21612.72.221.21712.72.221.21812.72.221.21912.72.221.22012.72.221.22112.72.221.22212.72.221.22312.72.221.22412.72.221.22512.72.221.22612.72.221.22712.72.221.22812.72.221.22912.72.221.23012.72.221.23112.72.221.23212.72.221.23312.72.221.23412.72.221.23512.72.221.23612.72.221.23712.72.221.23812.72.221.23912.72.221.24012.72.221.24112.72.221.24212.72.221.24312.72.221.24412.72.221.24512.72.221.24612.72.221.24712.72.221.24812.72.221.24912.72.221.25012.72.221.25112.72.221.25212.72.221.25312.72.221.25412.72.221.255