AS7018 12.20.160.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.20.160.0/2412.20.161.0/2412.20.162.0/2412.20.163.0/2412.20.164.0/2412.20.165.0/2412.20.166.0/2412.20.167.0/2412.20.168.0/2412.20.169.0/2412.20.170.0/2412.20.171.0/2412.20.172.0/2412.20.173.0/2412.20.174.0/2412.20.175.0/24