AS7018 12.161.128.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.161.128.0/2412.161.129.0/2412.161.130.0/2412.161.131.0/2412.161.132.0/2412.161.133.0/2412.161.134.0/2412.161.135.0/24