AS7018 198.11.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 2048198.11.48.0/24198.11.49.0/24198.11.50.0/24198.11.51.0/24198.11.52.0/24198.11.53.0/24198.11.54.0/24198.11.55.0/24