AS7018 12.23.200.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.23.200.0/2412.23.201.0/2412.23.202.0/2412.23.203.0/2412.23.204.0/2412.23.205.0/2412.23.206.0/2412.23.207.0/24