AS7018 12.21.142.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.21.142.012.21.142.112.21.142.212.21.142.312.21.142.412.21.142.512.21.142.612.21.142.712.21.142.812.21.142.912.21.142.1012.21.142.1112.21.142.1212.21.142.1312.21.142.1412.21.142.1512.21.142.1612.21.142.1712.21.142.1812.21.142.1912.21.142.2012.21.142.2112.21.142.2212.21.142.2312.21.142.2412.21.142.2512.21.142.2612.21.142.2712.21.142.2812.21.142.2912.21.142.3012.21.142.3112.21.142.3212.21.142.3312.21.142.3412.21.142.3512.21.142.3612.21.142.3712.21.142.3812.21.142.3912.21.142.4012.21.142.4112.21.142.4212.21.142.4312.21.142.4412.21.142.4512.21.142.4612.21.142.4712.21.142.4812.21.142.4912.21.142.5012.21.142.5112.21.142.5212.21.142.5312.21.142.5412.21.142.5512.21.142.5612.21.142.5712.21.142.5812.21.142.5912.21.142.6012.21.142.6112.21.142.6212.21.142.6312.21.142.6412.21.142.6512.21.142.6612.21.142.6712.21.142.6812.21.142.6912.21.142.7012.21.142.7112.21.142.7212.21.142.7312.21.142.7412.21.142.7512.21.142.7612.21.142.7712.21.142.7812.21.142.7912.21.142.8012.21.142.8112.21.142.8212.21.142.8312.21.142.8412.21.142.8512.21.142.8612.21.142.8712.21.142.8812.21.142.8912.21.142.9012.21.142.9112.21.142.9212.21.142.9312.21.142.9412.21.142.9512.21.142.9612.21.142.9712.21.142.9812.21.142.9912.21.142.10012.21.142.10112.21.142.10212.21.142.10312.21.142.10412.21.142.10512.21.142.10612.21.142.10712.21.142.10812.21.142.10912.21.142.11012.21.142.11112.21.142.11212.21.142.11312.21.142.11412.21.142.11512.21.142.11612.21.142.11712.21.142.11812.21.142.11912.21.142.12012.21.142.12112.21.142.12212.21.142.12312.21.142.12412.21.142.12512.21.142.12612.21.142.12712.21.142.12812.21.142.12912.21.142.13012.21.142.13112.21.142.13212.21.142.13312.21.142.13412.21.142.13512.21.142.13612.21.142.13712.21.142.13812.21.142.13912.21.142.14012.21.142.14112.21.142.14212.21.142.14312.21.142.14412.21.142.14512.21.142.14612.21.142.14712.21.142.14812.21.142.14912.21.142.15012.21.142.15112.21.142.15212.21.142.15312.21.142.15412.21.142.15512.21.142.15612.21.142.15712.21.142.15812.21.142.15912.21.142.16012.21.142.16112.21.142.16212.21.142.16312.21.142.16412.21.142.16512.21.142.16612.21.142.16712.21.142.16812.21.142.16912.21.142.17012.21.142.17112.21.142.17212.21.142.17312.21.142.17412.21.142.17512.21.142.17612.21.142.17712.21.142.17812.21.142.17912.21.142.18012.21.142.18112.21.142.18212.21.142.18312.21.142.18412.21.142.18512.21.142.18612.21.142.18712.21.142.18812.21.142.18912.21.142.19012.21.142.19112.21.142.19212.21.142.19312.21.142.19412.21.142.19512.21.142.19612.21.142.19712.21.142.19812.21.142.19912.21.142.20012.21.142.20112.21.142.20212.21.142.20312.21.142.20412.21.142.20512.21.142.20612.21.142.20712.21.142.20812.21.142.20912.21.142.21012.21.142.21112.21.142.21212.21.142.21312.21.142.21412.21.142.21512.21.142.21612.21.142.21712.21.142.21812.21.142.21912.21.142.22012.21.142.22112.21.142.22212.21.142.22312.21.142.22412.21.142.22512.21.142.22612.21.142.22712.21.142.22812.21.142.22912.21.142.23012.21.142.23112.21.142.23212.21.142.23312.21.142.23412.21.142.23512.21.142.23612.21.142.23712.21.142.23812.21.142.23912.21.142.24012.21.142.24112.21.142.24212.21.142.24312.21.142.24412.21.142.24512.21.142.24612.21.142.24712.21.142.24812.21.142.24912.21.142.25012.21.142.25112.21.142.25212.21.142.25312.21.142.25412.21.142.255