AS7018 12.205.144.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.205.144.0/2412.205.145.0/2412.205.146.0/2412.205.147.0/2412.205.148.0/2412.205.149.0/2412.205.150.0/2412.205.151.0/2412.205.152.0/2412.205.153.0/2412.205.154.0/2412.205.155.0/2412.205.156.0/2412.205.157.0/2412.205.158.0/2412.205.159.0/24