AS7018 12.138.192.0/19 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 8190Addressable IPs: 819212.138.192.0/2412.138.193.0/2412.138.194.0/2412.138.195.0/2412.138.196.0/2412.138.197.0/2412.138.198.0/2412.138.199.0/2412.138.200.0/2412.138.201.0/2412.138.202.0/2412.138.203.0/2412.138.204.0/2412.138.205.0/2412.138.206.0/2412.138.207.0/2412.138.208.0/2412.138.209.0/2412.138.210.0/2412.138.211.0/2412.138.212.0/2412.138.213.0/2412.138.214.0/2412.138.215.0/2412.138.216.0/2412.138.217.0/2412.138.218.0/2412.138.219.0/2412.138.220.0/2412.138.221.0/2412.138.222.0/2412.138.223.0/24