AS7018 12.45.56.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.45.56.0/2412.45.57.0/2412.45.58.0/2412.45.59.0/2412.45.60.0/2412.45.61.0/2412.45.62.0/2412.45.63.0/24