AS7018 12.237.104.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.237.104.0/2412.237.105.0/2412.237.106.0/2412.237.107.0/2412.237.108.0/2412.237.109.0/2412.237.110.0/2412.237.111.0/24