AS7018 12.131.21.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.131.21.012.131.21.112.131.21.212.131.21.312.131.21.412.131.21.512.131.21.612.131.21.712.131.21.812.131.21.912.131.21.1012.131.21.1112.131.21.1212.131.21.1312.131.21.1412.131.21.1512.131.21.1612.131.21.1712.131.21.1812.131.21.1912.131.21.2012.131.21.2112.131.21.2212.131.21.2312.131.21.2412.131.21.2512.131.21.2612.131.21.2712.131.21.2812.131.21.2912.131.21.3012.131.21.3112.131.21.3212.131.21.3312.131.21.3412.131.21.3512.131.21.3612.131.21.3712.131.21.3812.131.21.3912.131.21.4012.131.21.4112.131.21.4212.131.21.4312.131.21.4412.131.21.4512.131.21.4612.131.21.4712.131.21.4812.131.21.4912.131.21.5012.131.21.5112.131.21.5212.131.21.5312.131.21.5412.131.21.5512.131.21.5612.131.21.5712.131.21.5812.131.21.5912.131.21.6012.131.21.6112.131.21.6212.131.21.6312.131.21.6412.131.21.6512.131.21.6612.131.21.6712.131.21.6812.131.21.6912.131.21.7012.131.21.7112.131.21.7212.131.21.7312.131.21.7412.131.21.7512.131.21.7612.131.21.7712.131.21.7812.131.21.7912.131.21.8012.131.21.8112.131.21.8212.131.21.8312.131.21.8412.131.21.8512.131.21.8612.131.21.8712.131.21.8812.131.21.8912.131.21.9012.131.21.9112.131.21.9212.131.21.9312.131.21.9412.131.21.9512.131.21.9612.131.21.9712.131.21.9812.131.21.9912.131.21.10012.131.21.10112.131.21.10212.131.21.10312.131.21.10412.131.21.10512.131.21.10612.131.21.10712.131.21.10812.131.21.10912.131.21.11012.131.21.11112.131.21.11212.131.21.11312.131.21.11412.131.21.11512.131.21.11612.131.21.11712.131.21.11812.131.21.11912.131.21.12012.131.21.12112.131.21.12212.131.21.12312.131.21.12412.131.21.12512.131.21.12612.131.21.12712.131.21.12812.131.21.12912.131.21.13012.131.21.13112.131.21.13212.131.21.13312.131.21.13412.131.21.13512.131.21.13612.131.21.13712.131.21.13812.131.21.13912.131.21.14012.131.21.14112.131.21.14212.131.21.14312.131.21.14412.131.21.14512.131.21.14612.131.21.14712.131.21.14812.131.21.14912.131.21.15012.131.21.15112.131.21.15212.131.21.15312.131.21.15412.131.21.15512.131.21.15612.131.21.15712.131.21.15812.131.21.15912.131.21.16012.131.21.16112.131.21.16212.131.21.16312.131.21.16412.131.21.16512.131.21.16612.131.21.16712.131.21.16812.131.21.16912.131.21.17012.131.21.17112.131.21.17212.131.21.17312.131.21.17412.131.21.17512.131.21.17612.131.21.17712.131.21.17812.131.21.17912.131.21.18012.131.21.18112.131.21.18212.131.21.18312.131.21.18412.131.21.18512.131.21.18612.131.21.18712.131.21.18812.131.21.18912.131.21.19012.131.21.19112.131.21.19212.131.21.19312.131.21.19412.131.21.19512.131.21.19612.131.21.19712.131.21.19812.131.21.19912.131.21.20012.131.21.20112.131.21.20212.131.21.20312.131.21.20412.131.21.20512.131.21.20612.131.21.20712.131.21.20812.131.21.20912.131.21.21012.131.21.21112.131.21.21212.131.21.21312.131.21.21412.131.21.21512.131.21.21612.131.21.21712.131.21.21812.131.21.21912.131.21.22012.131.21.22112.131.21.22212.131.21.22312.131.21.22412.131.21.22512.131.21.22612.131.21.22712.131.21.22812.131.21.22912.131.21.23012.131.21.23112.131.21.23212.131.21.23312.131.21.23412.131.21.23512.131.21.23612.131.21.23712.131.21.23812.131.21.23912.131.21.24012.131.21.24112.131.21.24212.131.21.24312.131.21.24412.131.21.24512.131.21.24612.131.21.24712.131.21.24812.131.21.24912.131.21.25012.131.21.25112.131.21.25212.131.21.25312.131.21.25412.131.21.255