Data as of Nov 5, 2026

213.227.80.0/20

7 residential-proxy exits · 30 days

Silesian University of Technology, Computer Centre

Announcement
this exact prefix
RPKI valid
Announced by
Type
Business

Residential-proxy exits

Proxy exits
7
0.17% of its addresses · 30 days
Spread
2 of 16
/24s with at least one exit
Providers
27
selling exits here
Oct 6, 2026 – Nov 4, 2026

Exits seen per day

183 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
213.227.95.0/2406
213.227.88.0/2401

Proxy providers listing exits

  • 2Captcha
  • 2Extract
  • Ake.net
  • BirdProxies
  • ByteProxies
  • Byteful
  • DataImpulse
  • EnigmaProxy
  • FlashProxy
  • FlexyProxies
  • GSocks
  • Geonix
  • GonzoProxy
  • IPOasis
  • Infatica
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Proxiware
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • Proxyma
  • Shifter
  • VantageProxies
  • VitalExclusive
  • VitalProxy

Announcements

More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
213.227.88.0/21
since Oct 2016
AS8508Business7Silesian University of Technology, Computer Centre

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
213.227.64.0/1816,384PL-CKPOLSL-20001016Silesian University of Technology, Computer Centre (ORG-CSUO1-RIPE) · PLALLOCATED PAFeb 27, 2002abuse@silweb.pl
└ 213.227.80.0/212,048GIGGlowny Instytut GornictwaASSIGNED PAFeb 24, 2009abuse@gig.eu
└ 213.227.88.0/212,048UEUniwersytet Ekonomiczny w KatowicachASSIGNED PAFeb 18, 2009abuse@ue.katowice.pl

Network & registry

Origin network

AS8508

PL
Name
Silesian University of Technology, Computer Centre
Type
Education
Registered
Oct 13, 1997
Domain
polsl.pl
Website
www.polsl.pl/rju1-ck/sask/
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed