AS7018 12.237.208.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.237.208.0/2412.237.209.0/2412.237.210.0/2412.237.211.0/2412.237.212.0/2412.237.213.0/2412.237.214.0/2412.237.215.0/24