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Data as of Nov 8, 2026

213.227.64.0/20

4 residential-proxy exits · 30 days

Silesian University of Technology, Computer Centre

Announcement
this exact prefix
RPKI valid
Announced by
AS15744
Type
Business
51% of it

Residential-proxy exits

Proxy exits
4
0.10% of its addresses · 30 days
Always-on exits
1
25% of its exits
Spread
4 of 16
/24s with at least one exit
Providers
22
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

964 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
213.227.74.0/2411
213.227.68.0/2401
213.227.69.0/2401
213.227.71.0/2401

Proxy providers listing exits

  • AnyIP
  • B2Proxy
  • BirdProxies
  • Byteful
  • Decodo
  • FastProxy
  • FloppyData
  • Infatica
  • InfiniteProxies
  • LemonBright
  • MangoProxy
  • Oxylabs
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • Proxyma
  • PuraRoute
  • Shifter
  • SwiftProxy
  • TalorData
  • ThunderProxy
  • VitalExclusive

Announcements

More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
213.227.68.0/22
since May 2023
AS51175Residential3Silesian University of Technology, Computer Centre
213.227.72.0/22
since Feb 2009
AS35434Residential1
1 always on
Silesian 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
└ 213.227.68.0/221,024PL-MULTIPLAYMultiplay Sp. z o.o. (ORG-MSZO24-RIPE) · PLASSIGNED PADec 19, 2013abuse@multiplay.pl
└ 213.227.72.0 - 213.227.74.167680PIRXNETPirxNet Grzegorz Bialas (ORG-PGB3-RIPE) · PLASSIGNED PADec 20, 2013abuse@pirxnet.pl
└ 213.227.74.168/298JOTA-NETunknownASSIGNED PADec 20, 2013biuro@jotanet.pl
└ 213.227.74.176 - 213.227.75.79160PIRXNETPirxNet Grzegorz Bialas (ORG-PGB3-RIPE) · PLASSIGNED PADec 20, 2013abuse@pirxnet.pl
└ 213.227.75.80/2816JOTA-NETunknownASSIGNED PADec 20, 2013biuro@jotanet.pl
└ 213.227.75.96 - 213.227.75.255160PIRXNETPirxNet Grzegorz Bialas (ORG-PGB3-RIPE) · PLASSIGNED PADec 20, 2013abuse@pirxnet.pl
└ 213.227.76.0/221,024GIGGlowny Instytut GornictwaASSIGNED PAFeb 24, 2009abuse@gig.eu

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
Business2,07251%4
Residential2,02449%4

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS15744

PL
Name
Silesian University of Technology, Computer Centre
Type
Education
Registered
Oct 3, 2000
Domain
polsl.pl
Website
www.polsl.pl/rju1-ck/sask/
Industry
Colleges, Universities, and Professional Schools
Spamhaus ASN-DROP
not listed