AS7018 12.107.56.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.107.56.0/2412.107.57.0/2412.107.58.0/2412.107.59.0/2412.107.60.0/2412.107.61.0/2412.107.62.0/2412.107.63.0/24