ASN 7018 - AT&T Services Inc. Number of IPs: 2048 Number of Addressable Hosts: 2046 IP Subnets in 12.33.128.0/21 12.33.128.0/2412.33.129.0/2412.33.130.0/2412.33.131.0/2412.33.132.0/2412.33.133.0/2412.33.134.0/2412.33.135.0/24