IPv4 prefix

121.192.0.0/14

IP Prefix (CIDR)

121.192.0.0/14

Subnet Mask

255.252.0.0

Address Count

262,144

IP Range

121.192.0.0 - 121.195.255.255

Subnet calculator

Calculate subnet details

Registered Owner

Owner

CERNET Helpdesk

Handle

CER-AP

Country

China (CN)

Address

CERNET Center Beijing 100084, China

Registry

APNIC

Registered Prefixes

121.192.0.0/16 (121.192.0.0 - 121.192.255.255)
121.193.0.0/16 (121.193.0.0 - 121.193.255.255)
121.194.0.0/15 (121.194.0.0 - 121.195.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
121.192.0.0/14	Exact	AS4538	China Education and Research Network Center	China (CN)	121.192.0.0	121.195.255.255