AS7018 68.89.144.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409668.89.144.0/2468.89.145.0/2468.89.146.0/2468.89.147.0/2468.89.148.0/2468.89.149.0/2468.89.150.0/2468.89.151.0/2468.89.152.0/2468.89.153.0/2468.89.154.0/2468.89.155.0/2468.89.156.0/2468.89.157.0/2468.89.158.0/2468.89.159.0/24