AS7018 64.172.104.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204864.172.104.0/2464.172.105.0/2464.172.106.0/2464.172.107.0/2464.172.108.0/2464.172.109.0/2464.172.110.0/2464.172.111.0/24