AS7018 12.6.128.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.6.128.0/2412.6.129.0/2412.6.130.0/2412.6.131.0/2412.6.132.0/2412.6.133.0/2412.6.134.0/2412.6.135.0/24