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Data as of Nov 3, 2026

83.148.0.0/18

23 residential-proxy exits · 30 days

Quantcom, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS29208
Type
Internet provider
92% of it

Residential-proxy exits

Proxy exits
23
0.14% of its addresses · 30 days
Always-on exits
1
4.3% of its exits
Spread
6 of 64
/24s with at least one exit
Providers
47
selling exits here
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

1.3K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
83.148.32.0/2415
83.148.16.0/2407
83.148.60.0/2406
83.148.17.0/2402
83.148.34.0/2402
83.148.35.0/2401

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • BartProxies
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CatProxies
  • CoreProxy
  • Decodo
  • EnigmaProxy
  • Evomi
  • FlashProxy
  • GSocks
  • Geonix
  • Geonode
  • GonzoProxy
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • MangoProxy
  • MarsProxies
  • NSocks
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovaProxy
  • Oxylabs
  • PacketStream
  • Proxy-Seller
  • ProxyEmpire
  • ProxyRack
  • ProxyWing
  • Proxyma
  • RainProxy
  • Shifter
  • SpyderProxy
  • StrikeProxy
  • Thordata
  • TrustProxy
  • VantageProxies
  • VitalExclusive
  • Webshare

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
83.148.0.0/1816,384CZ-QUANTCOM-20040224Quantcom, a.s. (ORG-IA8-RIPE) · CZALLOCATED PAFeb 24, 2004[email protected]
└ 83.148.0.0/24256SUBSCRIBERSNET01BOSKOVICEDial Telecom, a.s.ASSIGNED PAApr 29, 2010[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.1.0/24256SUBSCRIBERSNET02BOSKOVICEDial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.2.0/24256SUBSCRIBERSNET03BOSKOVICEDial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.3.0/24256SUBSCRIBERSNET04BOSKOVICEDial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.4.0/24256ADSLCOLNETWORK2ADSL POP for Telenor usersASSIGNED PAOct 31, 2005[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.5.0/24256ADSLCOLNETWORK2ADSL POP for Telenor usersASSIGNED PAJan 6, 2006[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.6.56/304All-DoneAll Done s.r.o.ASSIGNED PAFeb 27, 2014[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.6.60/304HOTELARON-ADSL-NETBOHEME HOTELS a.s.ASSIGNED PAJan 5, 2011[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.7.0/24256ADSLCOLNETWORK2ADSL POP for Telenor usersASSIGNED PAMar 9, 2006[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.0/304ENERGO-PROENERGO - PRO a.s.ASSIGNED PAAug 18, 2026[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.4/304VilgainVilgain s.r.o.ASSIGNED PAAug 18, 2026[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.8/298GoEuro-CRGoEuro Czech Republic s.r.o.ASSIGNED PASep 2, 2010[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.16/298CISARLLUNETRadek CisarASSIGNED PAAug 1, 2006[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.24/298KREONETKREO, a.s.ASSIGNED PAApr 17, 2009[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.32/298DaE-stavebni-uradDopravni a energeticky stavebni uradASSIGNED PADec 14, 2006[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.40/304CLEMENTHotel CLEMENT s.r.o.ASSIGNED PASep 26, 2013[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.44/304KSB-PUMPY-PRG-NETKSB-PUMPY + ARMATURY s.r.o.ASSIGNED PAJun 21, 2011[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.48/298Top-in-czTop-in.cz, a.s.ASSIGNED PAOct 18, 2011[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.56/298ALS-CR-ADSLNETALS Czech Republic, s.r.o.ASSIGNED PAFeb 2, 2009[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.64/298DARVIS-ADSL-NETDARVIS spol. s r.o.ASSIGNED PAFeb 12, 2007[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.72/298CLEMENTHotel CLEMENT s.r.o.ASSIGNED PASep 26, 2013[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.80/2816RSJ-ServicesRSJ Services s.r.o.ASSIGNED PAJul 11, 2013[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.96/298AUFEER-DESIGNAUFEER DESIGN, s.r.o.ASSIGNED PASep 26, 2013[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.104/298IGSOFT-LLUIG-SOFT s.r.o.ASSIGNED PAOct 9, 2009[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.112/298Piovan-CRPiovan Czech Republic s.r.o.ASSIGNED PAApr 10, 2013[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.120/298SCOPE-INT-PRAHASCOPE INTERNATIONAL PRAHA, s.r.o.ASSIGNED PAJun 26, 2007[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.128/2732Skype-CRSkype Czech Republic s.r.o.ASSIGNED PAFeb 18, 2015[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.160/298EUROCONTADSLNETEUROCONT REALITY s.r.o.ASSIGNED PAJun 2, 2008[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.168/298NOPVOICETESTNETNOP Voice testing networkASSIGNED PAJan 19, 2010[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.176/298NOPIPTESTNETNOP IP testing networkASSIGNED PAJan 9, 2008[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.184/298Central-Warehouse-SolutionCentral Warehouse Solution s.r.o.ASSIGNED PAFeb 27, 2014[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.224/2816ANNEXADSLNETAnnex NET, s.r.o.ASSIGNED PAApr 6, 2009[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.8.240/2816MAXPROGRESMAXPROGRES telco, s.r.o.ASSIGNED PANov 28, 2014[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.16.0/24256SUBSCRIBERSNET01PRAHADial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.17.0/24256SUBSCRIBERSNET02PRAHADial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.23.160/2732DSLAMTESTNET0DSLAM testsASSIGNED PAOct 26, 2005[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.32.0/24256SUBSCRIBERSNET01BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.33.0/24256SUBSCRIBERSNET02BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.34.0/24256SUBSCRIBERSNET03BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.35.0/24256SUBSCRIBERSNET04BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.36.0/24256SUBSCRIBERSNET05BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.37.0/24256SUBSCRIBERSNET06BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.38.0/24256SUBSCRIBERSNET07BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.39.0/24256SUBSCRIBERSNET08BRNODial Telecom, a.s.ASSIGNED PAFeb 28, 2020[email protected]
via CZ-QUANTCOM-20040224
└ 83.148.60.0/24256XANETXANET s.r.o.ASSIGNED PANov 1, 2024[email protected]
via CZ-QUANTCOM-20040224

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

16,384 addresses
TypeAddressesShareRanges
Internet provider15,12892%6
Residential1,0766.6%12
Business1801.1%20

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS29208

CZ
Name
Quantcom, a.s.
Type
Internet provider
Registered
Jul 1, 2003
Domain
quantcom.cz
Website
www.quantcom.cz
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed