AS7018 12.71.128.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.71.128.0/2412.71.129.0/2412.71.130.0/2412.71.131.0/2412.71.132.0/2412.71.133.0/2412.71.134.0/2412.71.135.0/2412.71.136.0/2412.71.137.0/2412.71.138.0/2412.71.139.0/2412.71.140.0/2412.71.141.0/2412.71.142.0/2412.71.143.0/24