AS23911

Summary

Country	China
Organization	China Next Generation Internet Beijing Ix
Domain	cernet.edu.cn
Number of IPv4	512
Number of IPv6	7.9229× 1028
AS Type	Education
Registry	APNIC
Allocated	January 01, 1970 (about 56 years ago)
Updated	September 03, 2020 (about 4 years ago)

IP Ranges

AS23911 announces 2 IPv4 ranges and 2 IPv6 ranges.

That's a total of 512 IPv4 addresses and 7.9229× 10²⁸ IPv6 addresses.

Prefix	Organization	Size	Registry	Status
210.25.187.0/24	China Education And Research Network	256	APNIC	ALLOCATED PORTABLE
210.25.189.0/24	China Education And Research Network	256	APNIC	ALLOCATED PORTABLE

Prefix	Organization	Size	Registry	Status
2001:252::/32	Cngi International Gateway Network (cngiign)	7.9228× 1028	APNIC	ALLOCATED PORTABLE
2001:7fa:5::/48	China Next Generation Internet Beijing Ix	1.2089× 1024	APNIC	ASSIGNED PORTABLE

Peers

AS23911 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.

Upstreams

AS23911 connects to the global Internet via at least 2 upstream providers. In this setup, AS23911 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS23911 serves as a transit provider the following ASes, delivering the BGP routes needed for global connectivity. This downstream relationship underscores AS23911's role in extending Internet access beyond its own infrastructure.