AS7018 12.221.216.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.221.216.012.221.216.112.221.216.212.221.216.312.221.216.412.221.216.512.221.216.612.221.216.712.221.216.812.221.216.912.221.216.1012.221.216.1112.221.216.1212.221.216.1312.221.216.1412.221.216.1512.221.216.1612.221.216.1712.221.216.1812.221.216.1912.221.216.2012.221.216.2112.221.216.2212.221.216.2312.221.216.2412.221.216.2512.221.216.2612.221.216.2712.221.216.2812.221.216.2912.221.216.3012.221.216.3112.221.216.3212.221.216.3312.221.216.3412.221.216.3512.221.216.3612.221.216.3712.221.216.3812.221.216.3912.221.216.4012.221.216.4112.221.216.4212.221.216.4312.221.216.4412.221.216.4512.221.216.4612.221.216.4712.221.216.4812.221.216.4912.221.216.5012.221.216.5112.221.216.5212.221.216.5312.221.216.5412.221.216.5512.221.216.5612.221.216.5712.221.216.5812.221.216.5912.221.216.6012.221.216.6112.221.216.6212.221.216.6312.221.216.6412.221.216.6512.221.216.6612.221.216.6712.221.216.6812.221.216.6912.221.216.7012.221.216.7112.221.216.7212.221.216.7312.221.216.7412.221.216.7512.221.216.7612.221.216.7712.221.216.7812.221.216.7912.221.216.8012.221.216.8112.221.216.8212.221.216.8312.221.216.8412.221.216.8512.221.216.8612.221.216.8712.221.216.8812.221.216.8912.221.216.9012.221.216.9112.221.216.9212.221.216.9312.221.216.9412.221.216.9512.221.216.9612.221.216.9712.221.216.9812.221.216.9912.221.216.10012.221.216.10112.221.216.10212.221.216.10312.221.216.10412.221.216.10512.221.216.10612.221.216.10712.221.216.10812.221.216.10912.221.216.11012.221.216.11112.221.216.11212.221.216.11312.221.216.11412.221.216.11512.221.216.11612.221.216.11712.221.216.11812.221.216.11912.221.216.12012.221.216.12112.221.216.12212.221.216.12312.221.216.12412.221.216.12512.221.216.12612.221.216.12712.221.216.12812.221.216.12912.221.216.13012.221.216.13112.221.216.13212.221.216.13312.221.216.13412.221.216.13512.221.216.13612.221.216.13712.221.216.13812.221.216.13912.221.216.14012.221.216.14112.221.216.14212.221.216.14312.221.216.14412.221.216.14512.221.216.14612.221.216.14712.221.216.14812.221.216.14912.221.216.15012.221.216.15112.221.216.15212.221.216.15312.221.216.15412.221.216.15512.221.216.15612.221.216.15712.221.216.15812.221.216.15912.221.216.16012.221.216.16112.221.216.16212.221.216.16312.221.216.16412.221.216.16512.221.216.16612.221.216.16712.221.216.16812.221.216.16912.221.216.17012.221.216.17112.221.216.17212.221.216.17312.221.216.17412.221.216.17512.221.216.17612.221.216.17712.221.216.17812.221.216.17912.221.216.18012.221.216.18112.221.216.18212.221.216.18312.221.216.18412.221.216.18512.221.216.18612.221.216.18712.221.216.18812.221.216.18912.221.216.19012.221.216.19112.221.216.19212.221.216.19312.221.216.19412.221.216.19512.221.216.19612.221.216.19712.221.216.19812.221.216.19912.221.216.20012.221.216.20112.221.216.20212.221.216.20312.221.216.20412.221.216.20512.221.216.20612.221.216.20712.221.216.20812.221.216.20912.221.216.21012.221.216.21112.221.216.21212.221.216.21312.221.216.21412.221.216.21512.221.216.21612.221.216.21712.221.216.21812.221.216.21912.221.216.22012.221.216.22112.221.216.22212.221.216.22312.221.216.22412.221.216.22512.221.216.22612.221.216.22712.221.216.22812.221.216.22912.221.216.23012.221.216.23112.221.216.23212.221.216.23312.221.216.23412.221.216.23512.221.216.23612.221.216.23712.221.216.23812.221.216.23912.221.216.24012.221.216.24112.221.216.24212.221.216.24312.221.216.24412.221.216.24512.221.216.24612.221.216.24712.221.216.24812.221.216.24912.221.216.25012.221.216.25112.221.216.25212.221.216.25312.221.216.25412.221.216.255