IPv4 prefix

121.16.0.0/13

IP Prefix (CIDR): 121.16.0.0/13
Subnet Mask: 255.248.0.0
Address Count: 524,288
IP Range: 121.16.0.0 - 121.23.255.255
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: 121.16.0.0/13 (121.16.0.0 - 121.23.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
121.16.0.0/12	Covering	AS4837	CHINA UNICOM China169 Backbone	China (CN)	121.16.0.0	121.31.255.255