AS7018 12.30.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.30.48.0/2412.30.49.0/2412.30.50.0/2412.30.51.0/2412.30.52.0/2412.30.53.0/2412.30.54.0/2412.30.55.0/24