Data as of Nov 14, 2026
202.201.200.0/21
No anonymizer space · no proxy exits in 30 daysChina Education and Research Network Center · space held by China Education and Research Network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 202.200.0.0/14 since Jun 2026 | AS4538 | Business | 460 1 always on | China Education and Research Network | |
| 202.200.0.0/13 since May 2014 | AS4538 | Business | 501 1 always on | ||
| 202.192.0.0/12 since May 2005 | AS4538 | Business | 840 8 always on |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 202.201.201.0/24 | AS4538 | Business | China Education and Research Network |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 202.200.0.0/14 | 262,144 | CERNET-CN | China Education and Research Network | ALLOCATED PORTABLE | Sep 4, 2008 | abuse@ |
| └ 202.200.0.0/15 | 131,072 | XAR-CERNET | China Education and Research Network | ASSIGNED NON-PORTABLE | — | abuse@ |
Network & registry
Announced by
Covering announcement 202.201.192.0/18
- Prefix
- 202.201.192.0/18
- Announced by
- AS4538 China Education and Research Network Center
- Type
- Business
- Proxy exits
- 2
- RPKI
- No RPKI
- Netname
- XAR-CERNET
- Registrant
- China Education and Research Network
- RIR
- APNIC
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
Routing timeline
Covering aggregate above, the prefix's own history below
202.201.192.0/18
Routing history
- First seen
- Before our records
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 202.
200. 0. 0/ 15 - Netname
- XAR-CERNET
- Registrant
- China Education and Research Network
- Registrant country
- CN
- Organization
- China Education and Research Network
- Org country
- CN
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Mar 24, 2021
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Apr 17, 1996
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cernet. edu. cn - Name
- ABUSE CERNETAP
- Handle
- AC1685-AP