AS7018 206.16.40.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048206.16.40.0/24206.16.41.0/24206.16.42.0/24206.16.43.0/24206.16.44.0/24206.16.45.0/24206.16.46.0/24206.16.47.0/24