AS7018 12.3.176.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.3.176.0/2412.3.177.0/2412.3.178.0/2412.3.179.0/2412.3.180.0/2412.3.181.0/2412.3.182.0/2412.3.183.0/24