AS7018 68.251.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.251.168.0/2468.251.169.0/2468.251.170.0/2468.251.171.0/2468.251.172.0/2468.251.173.0/2468.251.174.0/2468.251.175.0/24