AS7018 12.186.144.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.186.144.0/2412.186.145.0/2412.186.146.0/2412.186.147.0/2412.186.148.0/2412.186.149.0/2412.186.150.0/2412.186.151.0/24