AS7018 12.221.16.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.221.16.012.221.16.112.221.16.212.221.16.312.221.16.412.221.16.512.221.16.612.221.16.712.221.16.812.221.16.912.221.16.1012.221.16.1112.221.16.1212.221.16.1312.221.16.1412.221.16.1512.221.16.1612.221.16.1712.221.16.1812.221.16.1912.221.16.2012.221.16.2112.221.16.2212.221.16.2312.221.16.2412.221.16.2512.221.16.2612.221.16.2712.221.16.2812.221.16.2912.221.16.3012.221.16.3112.221.16.3212.221.16.3312.221.16.3412.221.16.3512.221.16.3612.221.16.3712.221.16.3812.221.16.3912.221.16.4012.221.16.4112.221.16.4212.221.16.4312.221.16.4412.221.16.4512.221.16.4612.221.16.4712.221.16.4812.221.16.4912.221.16.5012.221.16.5112.221.16.5212.221.16.5312.221.16.5412.221.16.5512.221.16.5612.221.16.5712.221.16.5812.221.16.5912.221.16.6012.221.16.6112.221.16.6212.221.16.6312.221.16.6412.221.16.6512.221.16.6612.221.16.6712.221.16.6812.221.16.6912.221.16.7012.221.16.7112.221.16.7212.221.16.7312.221.16.7412.221.16.7512.221.16.7612.221.16.7712.221.16.7812.221.16.7912.221.16.8012.221.16.8112.221.16.8212.221.16.8312.221.16.8412.221.16.8512.221.16.8612.221.16.8712.221.16.8812.221.16.8912.221.16.9012.221.16.9112.221.16.9212.221.16.9312.221.16.9412.221.16.9512.221.16.9612.221.16.9712.221.16.9812.221.16.9912.221.16.10012.221.16.10112.221.16.10212.221.16.10312.221.16.10412.221.16.10512.221.16.10612.221.16.10712.221.16.10812.221.16.10912.221.16.11012.221.16.11112.221.16.11212.221.16.11312.221.16.11412.221.16.11512.221.16.11612.221.16.11712.221.16.11812.221.16.11912.221.16.12012.221.16.12112.221.16.12212.221.16.12312.221.16.12412.221.16.12512.221.16.12612.221.16.12712.221.16.12812.221.16.12912.221.16.13012.221.16.13112.221.16.13212.221.16.13312.221.16.13412.221.16.13512.221.16.13612.221.16.13712.221.16.13812.221.16.13912.221.16.14012.221.16.14112.221.16.14212.221.16.14312.221.16.14412.221.16.14512.221.16.14612.221.16.14712.221.16.14812.221.16.14912.221.16.15012.221.16.15112.221.16.15212.221.16.15312.221.16.15412.221.16.15512.221.16.15612.221.16.15712.221.16.15812.221.16.15912.221.16.16012.221.16.16112.221.16.16212.221.16.16312.221.16.16412.221.16.16512.221.16.16612.221.16.16712.221.16.16812.221.16.16912.221.16.17012.221.16.17112.221.16.17212.221.16.17312.221.16.17412.221.16.17512.221.16.17612.221.16.17712.221.16.17812.221.16.17912.221.16.18012.221.16.18112.221.16.18212.221.16.18312.221.16.18412.221.16.18512.221.16.18612.221.16.18712.221.16.18812.221.16.18912.221.16.19012.221.16.19112.221.16.19212.221.16.19312.221.16.19412.221.16.19512.221.16.19612.221.16.19712.221.16.19812.221.16.19912.221.16.20012.221.16.20112.221.16.20212.221.16.20312.221.16.20412.221.16.20512.221.16.20612.221.16.20712.221.16.20812.221.16.20912.221.16.21012.221.16.21112.221.16.21212.221.16.21312.221.16.21412.221.16.21512.221.16.21612.221.16.21712.221.16.21812.221.16.21912.221.16.22012.221.16.22112.221.16.22212.221.16.22312.221.16.22412.221.16.22512.221.16.22612.221.16.22712.221.16.22812.221.16.22912.221.16.23012.221.16.23112.221.16.23212.221.16.23312.221.16.23412.221.16.23512.221.16.23612.221.16.23712.221.16.23812.221.16.23912.221.16.24012.221.16.24112.221.16.24212.221.16.24312.221.16.24412.221.16.24512.221.16.24612.221.16.24712.221.16.24812.221.16.24912.221.16.25012.221.16.25112.221.16.25212.221.16.25312.221.16.25412.221.16.255