AS7018 12.31.203.0/24 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 254Addressable IPs: 256 12.31.203.012.31.203.112.31.203.212.31.203.312.31.203.412.31.203.512.31.203.612.31.203.712.31.203.812.31.203.912.31.203.1012.31.203.1112.31.203.1212.31.203.1312.31.203.1412.31.203.1512.31.203.1612.31.203.1712.31.203.1812.31.203.1912.31.203.2012.31.203.2112.31.203.2212.31.203.2312.31.203.2412.31.203.2512.31.203.2612.31.203.2712.31.203.2812.31.203.2912.31.203.3012.31.203.3112.31.203.3212.31.203.3312.31.203.3412.31.203.3512.31.203.3612.31.203.3712.31.203.3812.31.203.3912.31.203.4012.31.203.4112.31.203.4212.31.203.4312.31.203.4412.31.203.4512.31.203.4612.31.203.4712.31.203.4812.31.203.4912.31.203.5012.31.203.5112.31.203.5212.31.203.5312.31.203.5412.31.203.5512.31.203.5612.31.203.5712.31.203.5812.31.203.5912.31.203.6012.31.203.6112.31.203.6212.31.203.6312.31.203.6412.31.203.6512.31.203.6612.31.203.6712.31.203.6812.31.203.6912.31.203.7012.31.203.7112.31.203.7212.31.203.7312.31.203.7412.31.203.7512.31.203.7612.31.203.7712.31.203.7812.31.203.7912.31.203.8012.31.203.8112.31.203.8212.31.203.8312.31.203.8412.31.203.8512.31.203.8612.31.203.8712.31.203.8812.31.203.8912.31.203.9012.31.203.9112.31.203.9212.31.203.9312.31.203.9412.31.203.9512.31.203.9612.31.203.9712.31.203.9812.31.203.9912.31.203.10012.31.203.10112.31.203.10212.31.203.10312.31.203.10412.31.203.10512.31.203.10612.31.203.10712.31.203.10812.31.203.10912.31.203.11012.31.203.11112.31.203.11212.31.203.11312.31.203.11412.31.203.11512.31.203.11612.31.203.11712.31.203.11812.31.203.11912.31.203.12012.31.203.12112.31.203.12212.31.203.12312.31.203.12412.31.203.12512.31.203.12612.31.203.12712.31.203.12812.31.203.12912.31.203.13012.31.203.13112.31.203.13212.31.203.13312.31.203.13412.31.203.13512.31.203.13612.31.203.13712.31.203.13812.31.203.13912.31.203.14012.31.203.14112.31.203.14212.31.203.14312.31.203.14412.31.203.14512.31.203.14612.31.203.14712.31.203.14812.31.203.14912.31.203.15012.31.203.15112.31.203.15212.31.203.15312.31.203.15412.31.203.15512.31.203.15612.31.203.15712.31.203.15812.31.203.15912.31.203.16012.31.203.16112.31.203.16212.31.203.16312.31.203.16412.31.203.16512.31.203.16612.31.203.16712.31.203.16812.31.203.16912.31.203.17012.31.203.17112.31.203.17212.31.203.17312.31.203.17412.31.203.17512.31.203.17612.31.203.17712.31.203.17812.31.203.17912.31.203.18012.31.203.18112.31.203.18212.31.203.18312.31.203.18412.31.203.18512.31.203.18612.31.203.18712.31.203.18812.31.203.18912.31.203.19012.31.203.19112.31.203.19212.31.203.19312.31.203.19412.31.203.19512.31.203.19612.31.203.19712.31.203.19812.31.203.19912.31.203.20012.31.203.20112.31.203.20212.31.203.20312.31.203.20412.31.203.20512.31.203.20612.31.203.20712.31.203.20812.31.203.20912.31.203.21012.31.203.21112.31.203.21212.31.203.21312.31.203.21412.31.203.21512.31.203.21612.31.203.21712.31.203.21812.31.203.21912.31.203.22012.31.203.22112.31.203.22212.31.203.22312.31.203.22412.31.203.22512.31.203.22612.31.203.22712.31.203.22812.31.203.22912.31.203.23012.31.203.23112.31.203.23212.31.203.23312.31.203.23412.31.203.23512.31.203.23612.31.203.23712.31.203.23812.31.203.23912.31.203.24012.31.203.24112.31.203.24212.31.203.24312.31.203.24412.31.203.24512.31.203.24612.31.203.24712.31.203.24812.31.203.24912.31.203.25012.31.203.25112.31.203.25212.31.203.25312.31.203.25412.31.203.255