AS7018 71.139.152.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204871.139.152.0/2471.139.153.0/2471.139.154.0/2471.139.155.0/2471.139.156.0/2471.139.157.0/2471.139.158.0/2471.139.159.0/24