AS7018 12.16.200.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.16.200.0/2412.16.201.0/2412.16.202.0/2412.16.203.0/2412.16.204.0/2412.16.205.0/2412.16.206.0/2412.16.207.0/24