AS7018 71.131.128.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204871.131.128.0/2471.131.129.0/2471.131.130.0/2471.131.131.0/2471.131.132.0/2471.131.133.0/2471.131.134.0/2471.131.135.0/24