AS5079 68.31.136.0/21 CIDR and IP Range Summary.ASN: 5079 - T-Mobile USA Inc.Host Count: 2046Addressable IPs: 204868.31.136.0/2468.31.137.0/2468.31.138.0/2468.31.139.0/2468.31.140.0/2468.31.141.0/2468.31.142.0/2468.31.143.0/24