AS7018 12.37.176.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.37.176.0/2412.37.177.0/2412.37.178.0/2412.37.179.0/2412.37.180.0/2412.37.181.0/2412.37.182.0/2412.37.183.0/24