AS24369 — CNGI-SY-IX-AS-AP - CERNET2 IX at Northeast University

AS24369 announces 7 IPv4 prefixes covering 15,360 addresses and 0 IPv6 prefixes.

About this network

CNGI-SY-IX-AS-AP is the Autonomous System for the CERNET2 Internet Exchange Point hosted at Northeast University.

What it's used for

• The address space carries CERNET infrastructure, with all eight IPv4 prefixes registered under the netname CERNET-CN and registrant IRT-CERNET-AP.
• The AS announces 17,408 IPv4 addresses across 8 prefixes and 35 IPv6 prefixes, while maintaining only 3 observed routing neighbours, a ratio consistent with an exchange point or internal academic network rather than a transit provider.

Notable

• Registrants align with the announcer, as all sampled prefixes list IRT-CERNET-AP or CERNET Helpdesk as the responsible party.
• The inventory consists of blocks within the 210.30.0.0/16 and 202.118.0.0/16 ranges, reflecting the standard allocation for China's academic and research network.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 210.30.20.0/22
• 210.30.24.0/21
• 210.30.144.0/22
• 210.30.160.0/20
• 210.30.176.0/21
• 210.30.228.0/22
• 210.30.240.0/20

Upstream networks

• AS23910 China Next Generation Internet CERNET2
• AS4538 China Education and Research Network Center

Downstream networks

• AS139139 Shenyang Agricultural University

Adjacent networks

• AS23910 China Next Generation Internet CERNET2
• AS139139 Shenyang Agricultural University
• AS4538 China Education and Research Network Center

Routing security

• RPKI: 57 valid, 0 invalid and 2 not-found announcements; 60 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS20965:AS-FROM-TEIN-TO-GEANT, AS23911:AS-CUSTOMERS-V6, AS293:AS-FROM-SINGAREN-TO-ESNET, AS4538:AS-CUSTOMERS, AS4538:AS-CUSTOMERS-V6.