AS7018 12.46.136.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.46.136.0/2412.46.137.0/2412.46.138.0/2412.46.139.0/2412.46.140.0/2412.46.141.0/2412.46.142.0/2412.46.143.0/24