Data as of Nov 8, 2026
219.223.0.0/16
5 residential-proxy exits · 30 daysChina Education and Research Network Center · space held by China Education and Research Network
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Sep 18, 2026
from AS4538 China Education and Research Network Center, after 1.9 years unannounced
Residential-proxy exits
Proxy exits
5
<0.01% of its addresses · 30 days
Spread
3 of 256
/24s with at least one exit
Providers
5
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
10 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 219.223.130.0/24 | 0 | 2 | |
| 219.223.221.0/24 | 0 | 1 | |
| 219.223.233.0/24 | 0 | 1 |
Proxy providers listing exits
- GSocks
- Infatica
- NodeProxy
- ProxyEmpire
- Proxying
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 219.216.0.0/13 since May 2005 | AS4538 | Business | 521 4 always on |
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 219.223.0.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.4.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.6.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.8.0/22 since Sep 18, 2026 | AS4538 | Business | China Education and Research Network | ||
| 219.223.12.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.16.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.18.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.20.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.21.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.22.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.23.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.24.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.25.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.26.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.28.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.30.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.32.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.36.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.38.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.40.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.42.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.44.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.46.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.48.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.50.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.52.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.54.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.56.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.57.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.58.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.60.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.62.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.64.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.65.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.66.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.68.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.70.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.71.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.72.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.74.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.76.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.77.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.78.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.80.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.82.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.83.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.84.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.86.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.88.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.90.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.92.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.94.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.96.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.100.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.101.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.102.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.104.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.105.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.106.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.108.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.110.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.112.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.114.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.116.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.120.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.122.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.124.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.128.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.130.0/23 | AS4538 | Business | 2 | China Education and Research Network | |
| 219.223.136.0/24 since Mar 2023 | AS4538 | Business | China Education and Research Network | ||
| 219.223.160.0/19 | AS4538 | Business | China Education and Research Network | ||
| 219.223.160.0/21 | AS4538 | Business | China Education and Research Network | ||
| 219.223.168.0/21 | AS4538 | Business | China Education and Research Network | ||
| 219.223.176.0/20 | AS4538 | Business | China Education and Research Network | ||
| 219.223.190.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.192.0/18 | AS4538 | Business | 2 | China Education and Research Network | |
| 219.223.192.0/20 | AS4538 | Business | China Education and Research Network | ||
| 219.223.208.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.209.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.210.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.211.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.219.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.220.0/22 | AS4538 | Business | 1 | China Education and Research Network | |
| 219.223.224.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.228.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.232.0/21 | AS4538 | Business | 1 | China Education and Research Network | |
| 219.223.232.0/22 | AS4538 | Business | 1 | China Education and Research Network | |
| 219.223.236.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.240.0/21 | AS4538 | Business | China Education and Research Network | ||
| 219.223.240.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.244.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.248.0/22 | AS4538 | Business | China Education and Research Network | ||
| 219.223.248.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.250.0/23 | AS4538 | Business | China Education and Research Network | ||
| 219.223.252.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.253.0/24 | AS4538 | Business | China Education and Research Network | ||
| 219.223.254.0/24 | AS4538 | Business | China Education and Research Network |
Network & registry
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
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Oct 2019
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 219.
222. 0. 0/ 15 - Netname
- CERNET-CN
- 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
- Oct 20, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- CN
- Delegated
- Jan 9, 2003
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cernet. edu. cn - Name
- ABUSE CERNETAP
- Handle
- AC1685-AP