AS7018 12.166.200.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.166.200.0/2412.166.201.0/2412.166.202.0/2412.166.203.0/2412.166.204.0/2412.166.205.0/2412.166.206.0/2412.166.207.0/24