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Data as of Nov 9, 2026

212.106.128.0/19

8 residential-proxy exits · 30 days

Silesian University of Technology, Computer Centre

Announcement
this exact prefix
RPKI valid
Announced by
AS15744
Type
Business
94% of it

Residential-proxy exits

Proxy exits
8
0.10% of its addresses · 30 days
Spread
4 of 32
/24s with at least one exit
Providers
39
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

748 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
212.106.136.0/2404
212.106.137.0/2402
212.106.142.0/2401
212.106.159.0/2401

Proxy providers listing exits

  • 2Captcha
  • 2Extract
  • Ake.net
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CatProxies
  • Datarama
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GhostConnect
  • GonzoProxy
  • HideProxy
  • IPOasis
  • Infatica
  • InfiniteProxies
  • LudaxProxy
  • MangoProxy
  • NodeMaven
  • NodeProxy
  • NovaProxy
  • ProxiesVision
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • Proxyma
  • RainProxy
  • Shifter
  • VantageProxies
  • VibeProxies
  • VitalExclusive
  • VitalProxy

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
212.106.138.0/23
since Feb 2009
AS35434ResidentialSilesian 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
212.106.128.0/1816,384PL-CKPOLSL-981207Silesian University of Technology, Computer Centre (ORG-CSUO1-RIPE) · PLALLOCATED PAFeb 27, 2002abuse@silweb.pl
└ 212.106.128.0/24256F11f11-net Sp. z o.o.ASSIGNED PANov 5, 2010f11@f11.com.pl
└ 212.106.129.0/24256ENERGOPOMIARZak?ady Pomiarowo-Badawcze Energetyki "Energopomiar" Sp. z o.o.ASSIGNED PAJan 17, 2002ti@energopomiar.com.pl
└ 212.106.131.0/24256TARGITargiASSIGNED PAOct 19, 2015abuse@silweb.pl
via PL-CKPOLSL-981207
└ 212.106.138.0/23512PIRXNETPirxNetASSIGNED PAAug 2, 2011abuse@pirxnet.pl
└ 212.106.140.0/24256USUniwersytet Slaski W Katowicach (ORG-UOS47-RIPE) · PLASSIGNED PAJan 31, 2006abuse@us.edu.pl
└ 212.106.141.0/24256BIELMANUniwersytet Bielsko-BialskiASSIGNED PAJul 26, 2007abuse@ubb.edu.pl
└ 212.106.142.0/24256TECHNOPARKTechnopark GliwiceASSIGNED PAMar 22, 2018info@technopark.gliwice.pl
└ 212.106.143.0/24256MTPMTPASSIGNED PAJun 2, 2022abuse@silweb.pl
└ 212.106.146.0/24256USUniwersytet Slaski W Katowicach (ORG-UOS47-RIPE) · PLASSIGNED PAApr 16, 2008abuse@us.edu.pl
└ 212.106.150.0/24256IMNInstytut Metali NiezelaznychASSIGNED PAAug 6, 2004jb@imn.gliwice.pl
└ 212.106.153.0/24256ASKOMASKOM Sp. z o.o.ASSIGNED PAMar 6, 2009biuro@askom.pl
└ 212.106.154.0/24256KURIA-KATOWICEKuria Metropolitalna w KatowicachASSIGNED PA—sebastian.kreczmanski@archidiecezjakatowicka.pl
└ 212.106.158.0/298UEUniwersytet Ekonomiczny w KatowicachASSIGNED PAMar 16, 2017abuse@ue.katowice.pl
└ 212.106.158.32/304IKS-DRUKIKS DrukASSIGNED PAOct 2, 2017iks.firma@gmail.com
└ 212.106.158.40/298SASK-RIPE-ATLAS-NGRipe AtlasASSIGNED PAMay 21, 2018abuse@silweb.pl
via PL-CKPOLSL-981207
└ 212.106.158.48/298STOLOWKA-LUZYCKAProgram BIS Sp. z o.o.ASSIGNED PAApr 22, 2015stolowkaakademicka@interia.pl
└ 212.106.158.64/2732ZPSMSZespol Policealnych Szkol Medyczno-SpolecznychASSIGNED PAFeb 3, 2014medyk.bytom@onet.pl
└ 212.106.158.112/2816PWIK-RYBNIKPrzedsiebiorstwo Wodociagow i Kanalizacji Sp. z o.o.ASSIGNED PADec 18, 2013abuse@pwik-rybnik.pl
└ 212.106.158.128/2732IMZInstytut Metalurgii ZelazaASSIGNED PAApr 23, 2015abuse@imz.pl
└ 212.106.158.192/2816POCHPoch S.A.ASSIGNED PAFeb 11, 2009abuse@poch.com.pl
└ 212.106.158.240/298SavpolSavpol Sp. z o.o. Sp. k.ASSIGNED PAApr 23, 2015abuse@savpol.pl
└ 212.106.158.248/298IMZInstytut Metalurgii ZelazaASSIGNED PAApr 23, 2015abuse@imz.pl
└ 212.106.159.4/304KMPSPKomenda Miejska Pa?stwowej Stra?y Po?arnejASSIGNED PAApr 27, 2015kmpsp@kmpsp.gliwice.pl
└ 212.106.159.12/304AirCleanAirCleanASSIGNED PAMar 7, 2014airclean@airclean.com.pl
└ 212.106.159.16/304TECHNOPARKTechnopark GliwiceASSIGNED PAAug 10, 2018info@technopark.gliwice.pl
└ 212.106.159.24/304VisconetVisconet Sp. z o.o.ASSIGNED PAApr 3, 2015abuse@visconet.pl
└ 212.106.159.28/304GIGGlowny Instytut GornictwaASSIGNED PAApr 27, 2015abuse@gig.eu
└ 212.106.159.32/304SASK-INFRASASK InfrastructureASSIGNED PAApr 27, 2015abuse@silweb.pl
└ 212.106.159.36/304E-CallE-Call Polska Sp. z o.o.ASSIGNED PAAug 2, 2019michal.seidel@e-call.pl
└ 212.106.159.40/304Newtech-EngineeringNewtech Engineering Sp. z o.o.ASSIGNED PANov 6, 2008newtech@newtech.com.pl
└ 212.106.159.48/304KMPSPKomenda Miejska Pa?stwowej Stra?y Po?arnejASSIGNED PAApr 27, 2015kmpsp@kmpsp.gliwice.pl
└ 212.106.159.56/304KURIA-KATOWICEKuria Metropolitalna w KatowicachASSIGNED PAApr 27, 2015sebastian.kreczmanski@archidiecezjakatowicka.pl
└ 212.106.159.60/304SASK-INFRASASK InfrastructureASSIGNED PAFeb 25, 2016abuse@silweb.pl
└ 212.106.159.64/304SASK-INFRASASK InfrastructureASSIGNED PAApr 28, 2015abuse@silweb.pl
└ 212.106.159.68/304SASK-INFRASASK InfrastructureASSIGNED PAApr 28, 2015abuse@silweb.pl
└ 212.106.159.72/298VECTORPPHU VECTOR Miros?aw ?liwaASSIGNED PAApr 28, 2015a.wosko@systemygps.pl
└ 212.106.159.80/298UEUniwersytet Ekonomiczny w KatowicachASSIGNED PADec 14, 2015abuse@ue.katowice.pl
└ 212.106.159.88/298POLSL-CK-HOSTING-COMunknownASSIGNED PAApr 28, 2015abuse@silweb.pl
└ 212.106.159.96/2732TECHNOPARKTechnopark GliwiceASSIGNED PANov 8, 2013info@technopark.gliwice.pl
└ 212.106.159.136/298SASK-INFRASASK InfrastructureASSIGNED PAApr 28, 2015abuse@silweb.pl
└ 212.106.159.160/298VOXELVoxel S.A.ASSIGNED PAMay 28, 2026abuse@alteris.pl
└ 212.106.159.168/298SBB-ENERGYSBB Energy S.A.ASSIGNED PAFeb 19, 2016it@sbbenergy.pl
└ 212.106.159.184/312E-CallE-Call Polska Sp. z o.o.ASSIGNED PAApr 22, 2026michal.seidel@e-call.pl
└ 212.106.159.196/304MZDiIIMiejski Zarzad Drog i Infrastruktury InformatycznejASSIGNED PASep 15, 2015zari@zari.com.pl
└ 212.106.159.204/304MBP-KATOWICEMiejska Biblioteka Publiczna w KatowicachASSIGNED PAJan 22, 2024informatyzacja@mbp.katowice.pl
└ 212.106.159.208/304MZDiIIMiejski Zarzad Drog i Infrastruktury InformatycznejASSIGNED PAAug 26, 2016zari@zari.com.pl
└ 212.106.159.212/304BIELMANAkademia Techniczno-HumanistycznaASSIGNED PAApr 28, 2015abuse@ubb.edu.pl
└ 212.106.159.216/304SASK-INFRASASK InfrastructureASSIGNED PAFeb 25, 2016abuse@silweb.pl
└ 212.106.159.220/304SASK-INFRASASK InfrastructureASSIGNED PAFeb 25, 2016abuse@silweb.pl
└ 212.106.159.232/312SyrionSyrion Sp. z o.o. (ORG-SSZO97-RIPE) · PLASSIGNED PADec 21, 2020abuse@syrion.pl
└ 212.106.159.236/304SASK-INFRASASK InfrastructureASSIGNED PAFeb 25, 2016abuse@silweb.pl
└ 212.106.159.240/298CK-ZUS-INTERNALCK ZUS Internal NetworkASSIGNED PADec 22, 2019abuse@silweb.pl
via PL-CKPOLSL-981207
└ 212.106.159.248/304SASK-INFRASASK InfrastructureASSIGNED PAFeb 25, 2016abuse@silweb.pl
└ 212.106.159.252/304SASK-INFRASASK InfrastructureASSIGNED PAFeb 25, 2016abuse@silweb.pl

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

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

Announced space

Address share

Announced space

Types across the prefix

8,192 addresses
TypeAddressesShareRanges
Business7,68094%2
Residential5126.3%1

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