Data as of Nov 8, 2026
222.23.84.0/22
No anonymizer space · no proxy exits in 30 daysChina Education and Research Network Center · space held by China Education and Research Network
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Jun 2026
from AS4538 China Education and Research Network Center, after 21 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 222.16.0.0/13 since Jul 2014 | AS4538 | Business | 317 5 always on | |
| 222.16.0.0/12 since May 2005 | AS4538 | Business | 664 8 always on |
Network & registry
Announced by
Covering announcement 222.23.0.0/16
- Prefix
- 222.23.0.0/16
- Announced by
- AS4538 China Education and Research Network Center
- Type
- Business
- Proxy exits
- 12
- RPKI
- No RPKI
- Netname
- XAR-CERNET
- Registrant
- China Education and Research Network
- RIR
- APNIC
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
222.23.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 1
IRR
Route objects on 222.23.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4538 | APNIC | CERNET | MAINT-CERNET-AP | Jun 16, 2026 |
Whois
Registration for this announcement
- Range
- 222.
23. 0. 0 - 222. 25. 255. 255 - Netname
- XAR-CERNET
- Registrant
- China Education and Research Network
- Registrant country
- CN
- Organization
- China Education and Research Network
- Org country
- CN
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Sep 3, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Sep 30, 2003
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cernet. edu. cn - Name
- ABUSE CERNETAP
- Handle
- AC1685-AP