IPv4 prefix

210.21.0.0/17

IP Prefix (CIDR): 210.21.0.0/17
Subnet Mask: 255.255.128.0
Address Count: 32,768
IP Range: 210.21.0.0 - 210.21.127.255
Subnet calculator: Calculate subnet details

Registered Owner

Handle: IRT-CU-CN
Country: China (CN)
Address: No.21,Financial Street Beijing,100033 P.R.China
Registry: APNIC
Registered Prefix: 210.21.0.0/17 (210.21.0.0 - 210.21.127.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
210.21.0.0/17	Exact	AS17622	China Unicom Guangzhou network	China (CN)	210.21.0.0	210.21.127.255