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Data as of Nov 8, 2026

219.221.0.0/16

2 residential-proxy exits · 30 days

China Education and Research Network Center

Announcement
219.216.0.0/13
No RPKI
Announced by
AS4538
Type
Business

Residential-proxy exits

Proxy exits
2
<0.01% of its addresses · 30 days
Spread
2 of 256
/24s with at least one exit
Providers
24
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

2.0K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
219.221.160.0/2401
219.221.161.0/2401

Proxy providers listing exits

  • 711Proxy
  • BirdProxies
  • ByteProxies
  • Byteful
  • EnigmaProxy
  • FlexyProxies
  • GSocks
  • Geonix
  • GonzoProxy
  • HydraProxy
  • Infatica
  • LemonPrime
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyHat
  • ProxyStyler
  • Proxyma
  • Shifter
  • VitalData
  • VitalExclusive

Announcements

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

Arrived
PrefixOriginTypeProxy exitsHolderRPKI
219.221.0.0/20AS4538BusinessChina Education and Research Network
219.221.16.0/20AS4538BusinessChina Education and Research Network
219.221.32.0/20AS4538BusinessChina Education and Research Network
219.221.48.0/24AS4538BusinessChina Education and Research Network
219.221.49.0/24AS4538BusinessChina Education and Research Network
219.221.50.0/24AS4538BusinessChina Education and Research Network
219.221.64.0/19AS4538BusinessChina Education and Research Network
219.221.96.0/19AS4538BusinessChina Education and Research Network
219.221.128.0/20AS4538BusinessChina Education and Research Network
219.221.160.0/22AS4538Business2China Education and Research Network
219.221.176.0/20AS4538BusinessChina Education and Research Network
219.221.192.0/20AS4538BusinessChina Education and Research Network
219.221.208.0/20AS4538BusinessChina Education and Research Network
219.221.224.0/20AS4538BusinessChina Education and Research Network
219.221.240.0/20AS4538BusinessChina Education and Research Network
219.221.240.0/24AS4538BusinessChina Education and Research Network

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
219.221.0.0/1665,536CERNET-CNChina Education and Research NetworkALLOCATED PORTABLESep 4, 2008abuse@cernet.edu.cn

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 219.216.0.0/13

Prefix
219.216.0.0/13
Announced by
AS4538 China Education and Research Network Center
Type
Business
Proxy exits
521
Always-on exits
4
RPKI
No RPKI
RIR
APNIC
Registry

Holder

Organization
Not stated by the 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