AS7018 12.17.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.17.48.0/2412.17.49.0/2412.17.50.0/2412.17.51.0/2412.17.52.0/2412.17.53.0/2412.17.54.0/2412.17.55.0/24