AS7018 12.148.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.148.48.0/2412.148.49.0/2412.148.50.0/2412.148.51.0/2412.148.52.0/2412.148.53.0/2412.148.54.0/2412.148.55.0/24