AS7018 68.252.144.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.252.144.0/2468.252.145.0/2468.252.146.0/2468.252.147.0/2468.252.148.0/2468.252.149.0/2468.252.150.0/2468.252.151.0/24