IPv4 prefix

121.255.0.0/16

IP Prefix (CIDR): 121.255.0.0/16
Subnet Mask: 255.255.0.0
Address Count: 65,536
IP Range: 121.255.0.0 - 121.255.255.255
Subnet calculator: Calculate subnet details

Registered Owner

Owner: Xia Yuliang
Handle: XY1746-AP
Country: China (CN)
Address: Network Information Center, USTC, Jinzhai Road
Registry: APNIC
Registered Prefix: 121.255.0.0/16 (121.255.0.0 - 121.255.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
121.255.0.0/16	Exact	AS9808	China Mobile Communications Group Co. Ltd	China (CN)	121.255.0.0	121.255.255.255