AS7018 204.146.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 4096204.146.128.0/24204.146.129.0/24204.146.130.0/24204.146.131.0/24204.146.132.0/24204.146.133.0/24204.146.134.0/24204.146.135.0/24204.146.136.0/24204.146.137.0/24204.146.138.0/24204.146.139.0/24204.146.140.0/24204.146.141.0/24204.146.142.0/24204.146.143.0/24