AS7018 12.23.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.23.48.0/2412.23.49.0/2412.23.50.0/2412.23.51.0/2412.23.52.0/2412.23.53.0/2412.23.54.0/2412.23.55.0/24