AS7018 12.9.16.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.9.16.0/2412.9.17.0/2412.9.18.0/2412.9.19.0/2412.9.20.0/2412.9.21.0/2412.9.22.0/2412.9.23.0/24