AS7018 12.188.144.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.188.144.0/2412.188.145.0/2412.188.146.0/2412.188.147.0/2412.188.148.0/2412.188.149.0/2412.188.150.0/2412.188.151.0/24