AS7018 12.12.144.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.12.144.0/2412.12.145.0/2412.12.146.0/2412.12.147.0/2412.12.148.0/2412.12.149.0/2412.12.150.0/2412.12.151.0/24