AS7018 12.105.56.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.105.56.0/2412.105.57.0/2412.105.58.0/2412.105.59.0/2412.105.60.0/2412.105.61.0/2412.105.62.0/2412.105.63.0/24