AS7018 15.0.104.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204815.0.104.0/2415.0.105.0/2415.0.106.0/2415.0.107.0/2415.0.108.0/2415.0.109.0/2415.0.110.0/2415.0.111.0/24