AS7018 12.196.16.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.196.16.0/2412.196.17.0/2412.196.18.0/2412.196.19.0/2412.196.20.0/2412.196.21.0/2412.196.22.0/2412.196.23.0/24