AS21928 72.250.96.0/20 CIDR and IP Range Summary.ASN: 21928 - T-Mobile USA Inc.Host Count: 4094Addressable IPs: 409672.250.96.0/2472.250.97.0/2472.250.98.0/2472.250.99.0/2472.250.100.0/2472.250.101.0/2472.250.102.0/2472.250.103.0/2472.250.104.0/2472.250.105.0/2472.250.106.0/2472.250.107.0/2472.250.108.0/2472.250.109.0/2472.250.110.0/2472.250.111.0/24