AS7018 12.237.128.0/19 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 8190Addressable IPs: 819212.237.128.0/2412.237.129.0/2412.237.130.0/2412.237.131.0/2412.237.132.0/2412.237.133.0/2412.237.134.0/2412.237.135.0/2412.237.136.0/2412.237.137.0/2412.237.138.0/2412.237.139.0/2412.237.140.0/2412.237.141.0/2412.237.142.0/2412.237.143.0/2412.237.144.0/2412.237.145.0/2412.237.146.0/2412.237.147.0/2412.237.148.0/2412.237.149.0/2412.237.150.0/2412.237.151.0/2412.237.152.0/2412.237.153.0/2412.237.154.0/2412.237.155.0/2412.237.156.0/2412.237.157.0/2412.237.158.0/2412.237.159.0/24