AS7018 68.91.8.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.91.8.0/2468.91.9.0/2468.91.10.0/2468.91.11.0/2468.91.12.0/2468.91.13.0/2468.91.14.0/2468.91.15.0/24