AS7018 216.61.176.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048216.61.176.0/24216.61.177.0/24216.61.178.0/24216.61.179.0/24216.61.180.0/24216.61.181.0/24216.61.182.0/24216.61.183.0/24