AS7018 64.163.144.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409664.163.144.0/2464.163.145.0/2464.163.146.0/2464.163.147.0/2464.163.148.0/2464.163.149.0/2464.163.150.0/2464.163.151.0/2464.163.152.0/2464.163.153.0/2464.163.154.0/2464.163.155.0/2464.163.156.0/2464.163.157.0/2464.163.158.0/2464.163.159.0/24