AS7018 99.16.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204899.16.40.0/2499.16.41.0/2499.16.42.0/2499.16.43.0/2499.16.44.0/2499.16.45.0/2499.16.46.0/2499.16.47.0/24