AS7018 68.72.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204868.72.192.0/2468.72.193.0/2468.72.194.0/2468.72.195.0/2468.72.196.0/2468.72.197.0/2468.72.198.0/2468.72.199.0/24