AS7018 199.107.168.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048199.107.168.0/24199.107.169.0/24199.107.170.0/24199.107.171.0/24199.107.172.0/24199.107.173.0/24199.107.174.0/24199.107.175.0/24