AS7018 12.37.0.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.37.0.0/2412.37.1.0/2412.37.2.0/2412.37.3.0/2412.37.4.0/2412.37.5.0/2412.37.6.0/2412.37.7.0/24