Autonomous system
AS24353 CNGI-XA-IX-AS-AP CERNET2 IX at Xian Jiaotong University
Unclassified APNIC
Summary
CERNET2 IX at Xi'an Jiaotong University
education ix research china
CNGI-XA-IX-AS-AP is operated by CERNET2 IX at Xi'an Jiaotong University.
What it's used for
- The address space carries academic and research traffic associated with the China Education and Research Network (CERNET), as indicated by the netname
XAR-CERNETand registrantCERNET Helpdesk. - The AS announces 65,536 IPv4 addresses within a single /16 prefix and 37 IPv6 prefixes, while maintaining only 2 observed routing neighbours, a ratio characteristic of an access or eyeball network rather than a transit provider.
Notable
- The registrant
CERNET Helpdeskaligns with the announcer's identity as a CERNET infrastructure component. - The address inventory consists of one large IPv4 block and a fragmented set of IPv6 prefixes, all located in China.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CN | China | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS24353- Registry name
- CNGI-XA-IX-AS-AP
- Abuse contact
- abuse@cernet.edu.cn
- Registered
- 2008-09-04
- Last changed
- 2020-09-03
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 99.0% valid · 102 valid, 1 with no ROA
- ROAs
- 105 authorising AS24353
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 103 announcements 1 other origin
- Route objects
- 0 naming AS24353
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,784 prefixes, as published 2026-10-19. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere