Data as of Nov 10, 2026
202.112.4.0/22
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 |
|---|---|---|---|---|---|
| 202.112.0.0/15 since May 2014 | AS4538 | Business | 788 3 always on | China Education and Research Network | |
| 202.112.0.0/14 since Jun 2013 | AS4538 | Business | 864 7 always on | China Education and Research Network | |
| 202.112.0.0/13 since May 2005 | AS4538 | Business | 1,399 15 always on | China Education and Research Network |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 202.112.7.0/24 since Sep 18, 2026 | 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. | 655,360 | CERNET-CN | China Education and Research Network | ALLOCATED PORTABLE | — | abuse@ |
| └ 202.112.0.0/15 | 131,072 | BJR-CERNET | China Education and Research Network (CERNET) (ORG-CEAR1-AP) · CN | ALLOCATED PORTABLE | — | abuse@ |
Network & registry
Announced by
Covering announcement 202.112.0.0/16
- Prefix
- 202.112.0.0/16
- Announced by
- AS4538 China Education and Research Network Center
- Type
- Business
- Proxy exits
- 25
- RPKI
- No RPKI
- Netname
- BJR-CERNET
- Registrant
- China Education and Research Network (CERNET)
- RIR
- APNIC
Registry
Holder
- Organization
- China Education and Research Network
- Range
- 202.
112. 0. 0 - 202. 121. 255. 255 - 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
202.112.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2014
- Current origin since
- May 2014 · 13 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 202.
112. 0. 0/ 15 - Netname
- BJR-CERNET
- Registrant
- China Education and Research Network (CERNET)
- Registrant country
- CN
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- May 28, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Sep 21, 1995
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cernet. edu. cn - Name
- ABUSE CERNETAP
- Handle
- AC1685-AP