AS7018 12.37.200.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.37.200.0/2412.37.201.0/2412.37.202.0/2412.37.203.0/2412.37.204.0/2412.37.205.0/2412.37.206.0/2412.37.207.0/24