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Data as of Nov 4, 2026

202.203.176.0/20

No anonymizer space · no proxy exits in 30 days

China Education and Research Network Center · space held by China Education and Research Network

Announcement
this exact prefix
No RPKI
Announced by
AS4538
Type
Business
Recent change
New origin Sep 18, 2026
from AS4538 China Education and Research Network Center

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
202.203.0.0/16
since Sep 18, 2026
AS4538BusinessChina Education and Research Network
202.200.0.0/14
since Jun 2026
AS4538Business438
3 always on
China Education and Research Network
202.200.0.0/13
since May 2014
AS4538Business479
3 always on
202.192.0.0/12
since May 2005
AS4538Business815
10 always on
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
202.203.176.0/24AS4538BusinessChina Education and Research Network
202.203.187.0/24AS4538BusinessChina Education and Research Network

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
202.200.0.0/14262,144CERNET-CNChina Education and Research NetworkALLOCATED PORTABLESep 4, 2008[email protected]
└ 202.202.0.0/15131,072CDR-CERNETChina Education and Research NetworkASSIGNED NON-PORTABLE—[email protected]

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
China Education and Research Network
Range
202.200.0.0/14
Registration type
ALLOCATED PORTABLE
Origin network

AS4538

CN
Name
China Education and Research Network Center
Type
Education
Registered
Aug 1, 2002
Domain
cernet.edu.cn
Website
www.edu.cn
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed