AS7018 12.138.203.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.138.203.012.138.203.112.138.203.212.138.203.312.138.203.412.138.203.512.138.203.612.138.203.712.138.203.812.138.203.912.138.203.1012.138.203.1112.138.203.1212.138.203.1312.138.203.1412.138.203.1512.138.203.1612.138.203.1712.138.203.1812.138.203.1912.138.203.2012.138.203.2112.138.203.2212.138.203.2312.138.203.2412.138.203.2512.138.203.2612.138.203.2712.138.203.2812.138.203.2912.138.203.3012.138.203.3112.138.203.3212.138.203.3312.138.203.3412.138.203.3512.138.203.3612.138.203.3712.138.203.3812.138.203.3912.138.203.4012.138.203.4112.138.203.4212.138.203.4312.138.203.4412.138.203.4512.138.203.4612.138.203.4712.138.203.4812.138.203.4912.138.203.5012.138.203.5112.138.203.5212.138.203.5312.138.203.5412.138.203.5512.138.203.5612.138.203.5712.138.203.5812.138.203.5912.138.203.6012.138.203.6112.138.203.6212.138.203.6312.138.203.6412.138.203.6512.138.203.6612.138.203.6712.138.203.6812.138.203.6912.138.203.7012.138.203.7112.138.203.7212.138.203.7312.138.203.7412.138.203.7512.138.203.7612.138.203.7712.138.203.7812.138.203.7912.138.203.8012.138.203.8112.138.203.8212.138.203.8312.138.203.8412.138.203.8512.138.203.8612.138.203.8712.138.203.8812.138.203.8912.138.203.9012.138.203.9112.138.203.9212.138.203.9312.138.203.9412.138.203.9512.138.203.9612.138.203.9712.138.203.9812.138.203.9912.138.203.10012.138.203.10112.138.203.10212.138.203.10312.138.203.10412.138.203.10512.138.203.10612.138.203.10712.138.203.10812.138.203.10912.138.203.11012.138.203.11112.138.203.11212.138.203.11312.138.203.11412.138.203.11512.138.203.11612.138.203.11712.138.203.11812.138.203.11912.138.203.12012.138.203.12112.138.203.12212.138.203.12312.138.203.12412.138.203.12512.138.203.12612.138.203.12712.138.203.12812.138.203.12912.138.203.13012.138.203.13112.138.203.13212.138.203.13312.138.203.13412.138.203.13512.138.203.13612.138.203.13712.138.203.13812.138.203.13912.138.203.14012.138.203.14112.138.203.14212.138.203.14312.138.203.14412.138.203.14512.138.203.14612.138.203.14712.138.203.14812.138.203.14912.138.203.15012.138.203.15112.138.203.15212.138.203.15312.138.203.15412.138.203.15512.138.203.15612.138.203.15712.138.203.15812.138.203.15912.138.203.16012.138.203.16112.138.203.16212.138.203.16312.138.203.16412.138.203.16512.138.203.16612.138.203.16712.138.203.16812.138.203.16912.138.203.17012.138.203.17112.138.203.17212.138.203.17312.138.203.17412.138.203.17512.138.203.17612.138.203.17712.138.203.17812.138.203.17912.138.203.18012.138.203.18112.138.203.18212.138.203.18312.138.203.18412.138.203.18512.138.203.18612.138.203.18712.138.203.18812.138.203.18912.138.203.19012.138.203.19112.138.203.19212.138.203.19312.138.203.19412.138.203.19512.138.203.19612.138.203.19712.138.203.19812.138.203.19912.138.203.20012.138.203.20112.138.203.20212.138.203.20312.138.203.20412.138.203.20512.138.203.20612.138.203.20712.138.203.20812.138.203.20912.138.203.21012.138.203.21112.138.203.21212.138.203.21312.138.203.21412.138.203.21512.138.203.21612.138.203.21712.138.203.21812.138.203.21912.138.203.22012.138.203.22112.138.203.22212.138.203.22312.138.203.22412.138.203.22512.138.203.22612.138.203.22712.138.203.22812.138.203.22912.138.203.23012.138.203.23112.138.203.23212.138.203.23312.138.203.23412.138.203.23512.138.203.23612.138.203.23712.138.203.23812.138.203.23912.138.203.24012.138.203.24112.138.203.24212.138.203.24312.138.203.24412.138.203.24512.138.203.24612.138.203.24712.138.203.24812.138.203.24912.138.203.25012.138.203.25112.138.203.25212.138.203.25312.138.203.25412.138.203.255