AS7018 12.133.176.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.133.176.0/2412.133.177.0/2412.133.178.0/2412.133.179.0/2412.133.180.0/2412.133.181.0/2412.133.182.0/2412.133.183.0/24