AS7018 12.4.221.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.4.221.012.4.221.112.4.221.212.4.221.312.4.221.412.4.221.512.4.221.612.4.221.712.4.221.812.4.221.912.4.221.1012.4.221.1112.4.221.1212.4.221.1312.4.221.1412.4.221.1512.4.221.1612.4.221.1712.4.221.1812.4.221.1912.4.221.2012.4.221.2112.4.221.2212.4.221.2312.4.221.2412.4.221.2512.4.221.2612.4.221.2712.4.221.2812.4.221.2912.4.221.3012.4.221.3112.4.221.3212.4.221.3312.4.221.3412.4.221.3512.4.221.3612.4.221.3712.4.221.3812.4.221.3912.4.221.4012.4.221.4112.4.221.4212.4.221.4312.4.221.4412.4.221.4512.4.221.4612.4.221.4712.4.221.4812.4.221.4912.4.221.5012.4.221.5112.4.221.5212.4.221.5312.4.221.5412.4.221.5512.4.221.5612.4.221.5712.4.221.5812.4.221.5912.4.221.6012.4.221.6112.4.221.6212.4.221.6312.4.221.6412.4.221.6512.4.221.6612.4.221.6712.4.221.6812.4.221.6912.4.221.7012.4.221.7112.4.221.7212.4.221.7312.4.221.7412.4.221.7512.4.221.7612.4.221.7712.4.221.7812.4.221.7912.4.221.8012.4.221.8112.4.221.8212.4.221.8312.4.221.8412.4.221.8512.4.221.8612.4.221.8712.4.221.8812.4.221.8912.4.221.9012.4.221.9112.4.221.9212.4.221.9312.4.221.9412.4.221.9512.4.221.9612.4.221.9712.4.221.9812.4.221.9912.4.221.10012.4.221.10112.4.221.10212.4.221.10312.4.221.10412.4.221.10512.4.221.10612.4.221.10712.4.221.10812.4.221.10912.4.221.11012.4.221.11112.4.221.11212.4.221.11312.4.221.11412.4.221.11512.4.221.11612.4.221.11712.4.221.11812.4.221.11912.4.221.12012.4.221.12112.4.221.12212.4.221.12312.4.221.12412.4.221.12512.4.221.12612.4.221.12712.4.221.12812.4.221.12912.4.221.13012.4.221.13112.4.221.13212.4.221.13312.4.221.13412.4.221.13512.4.221.13612.4.221.13712.4.221.13812.4.221.13912.4.221.14012.4.221.14112.4.221.14212.4.221.14312.4.221.14412.4.221.14512.4.221.14612.4.221.14712.4.221.14812.4.221.14912.4.221.15012.4.221.15112.4.221.15212.4.221.15312.4.221.15412.4.221.15512.4.221.15612.4.221.15712.4.221.15812.4.221.15912.4.221.16012.4.221.16112.4.221.16212.4.221.16312.4.221.16412.4.221.16512.4.221.16612.4.221.16712.4.221.16812.4.221.16912.4.221.17012.4.221.17112.4.221.17212.4.221.17312.4.221.17412.4.221.17512.4.221.17612.4.221.17712.4.221.17812.4.221.17912.4.221.18012.4.221.18112.4.221.18212.4.221.18312.4.221.18412.4.221.18512.4.221.18612.4.221.18712.4.221.18812.4.221.18912.4.221.19012.4.221.19112.4.221.19212.4.221.19312.4.221.19412.4.221.19512.4.221.19612.4.221.19712.4.221.19812.4.221.19912.4.221.20012.4.221.20112.4.221.20212.4.221.20312.4.221.20412.4.221.20512.4.221.20612.4.221.20712.4.221.20812.4.221.20912.4.221.21012.4.221.21112.4.221.21212.4.221.21312.4.221.21412.4.221.21512.4.221.21612.4.221.21712.4.221.21812.4.221.21912.4.221.22012.4.221.22112.4.221.22212.4.221.22312.4.221.22412.4.221.22512.4.221.22612.4.221.22712.4.221.22812.4.221.22912.4.221.23012.4.221.23112.4.221.23212.4.221.23312.4.221.23412.4.221.23512.4.221.23612.4.221.23712.4.221.23812.4.221.23912.4.221.24012.4.221.24112.4.221.24212.4.221.24312.4.221.24412.4.221.24512.4.221.24612.4.221.24712.4.221.24812.4.221.24912.4.221.25012.4.221.25112.4.221.25212.4.221.25312.4.221.25412.4.221.255