AS7018 68.251.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.251.216.0/2468.251.217.0/2468.251.218.0/2468.251.219.0/2468.251.220.0/2468.251.221.0/2468.251.222.0/2468.251.223.0/24