AS7018 12.181.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.181.216.0/2412.181.217.0/2412.181.218.0/2412.181.219.0/2412.181.220.0/2412.181.221.0/2412.181.222.0/2412.181.223.0/24