AS7018 12.133.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.133.192.0/2412.133.193.0/2412.133.194.0/2412.133.195.0/2412.133.196.0/2412.133.197.0/2412.133.198.0/2412.133.199.0/24