AS45090 139.199.48.0/21 CIDR and IP Range Summary.ASN: 45090 - Shenzhen Tencent Computer Systems Company LimitedHost Count: 2046Addressable IPs: 2048139.199.48.0/24139.199.49.0/24139.199.50.0/24139.199.51.0/24139.199.52.0/24139.199.53.0/24139.199.54.0/24139.199.55.0/24