AS7018 71.131.144.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409671.131.144.0/2471.131.145.0/2471.131.146.0/2471.131.147.0/2471.131.148.0/2471.131.149.0/2471.131.150.0/2471.131.151.0/2471.131.152.0/2471.131.153.0/2471.131.154.0/2471.131.155.0/2471.131.156.0/2471.131.157.0/2471.131.158.0/2471.131.159.0/24