AS7018 12.181.144.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.181.144.0/2412.181.145.0/2412.181.146.0/2412.181.147.0/2412.181.148.0/2412.181.149.0/2412.181.150.0/2412.181.151.0/2412.181.152.0/2412.181.153.0/2412.181.154.0/2412.181.155.0/2412.181.156.0/2412.181.157.0/2412.181.158.0/2412.181.159.0/24