AS7018 12.42.48.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.42.48.0/2412.42.49.0/2412.42.50.0/2412.42.51.0/2412.42.52.0/2412.42.53.0/2412.42.54.0/2412.42.55.0/24