AS7018 68.89.128.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.89.128.0/2468.89.129.0/2468.89.130.0/2468.89.131.0/2468.89.132.0/2468.89.133.0/2468.89.134.0/2468.89.135.0/24