AS7018 12.42.176.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.42.176.0/2412.42.177.0/2412.42.178.0/2412.42.179.0/2412.42.180.0/2412.42.181.0/2412.42.182.0/2412.42.183.0/24