AS7018 12.184.16.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.184.16.0/2412.184.17.0/2412.184.18.0/2412.184.19.0/2412.184.20.0/2412.184.21.0/2412.184.22.0/2412.184.23.0/24