AS7018 12.173.232.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.173.232.0/2412.173.233.0/2412.173.234.0/2412.173.235.0/2412.173.236.0/2412.173.237.0/2412.173.238.0/2412.173.239.0/24