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Data as of Nov 7, 2026

81.200.48.0/20

25 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS41046
Type
Residential
68% of it

Residential-proxy exits

Proxy exits
25
0.61% of its addresses · 30 days
Always-on exits
2
8.0% of its exits
Spread
10 of 16
/24s with at least one exit
Providers
43
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

13K observations
  • Residential
  • Business

/24s with the most always-on exits

/24Always-on exitsProxy exits
81.200.53.0/2415
81.200.56.0/2411
81.200.51.0/2405
81.200.54.0/2404
81.200.58.0/2402
81.200.59.0/2402
81.200.61.0/2402
81.200.63.0/2402
81.200.50.0/2401
81.200.62.0/2401

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CliProxy
  • DataImpulse
  • Decodo
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • GSocks
  • Geonode
  • GonzoProxy
  • IPOasis
  • IPRoyal
  • Infatica
  • LemonBright
  • MangoProxy
  • Maskify
  • NodeProxy
  • NovaProxy
  • Oxylabs
  • PacketStream
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyRack
  • ProxyWing
  • Proxyma
  • RainProxy
  • Shifter
  • StrikeProxy
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalExclusive
  • VitalProxy
  • Webshare

Announcements

More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
81.200.48.0/21
since Mar 2011
AS41046Residential15
1 always on
O2 Czech Republic, a.s.
81.200.56.0/21
since Mar 2011
AS41046Residential10
1 always on
O2 Czech Republic, a.s.

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
81.200.48.0/204,096CZ-CZNET-20060601O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PAJun 1, 2006abuse@o2.cz
└ 81.200.48.0 - 81.200.48.9596NET-TVTRINEC-BACKBONEBKS Trinec - backbone serversASSIGNED PAMay 9, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.48.96 - 81.200.48.254159NET-TVTRINEC-NATBKS Trinec - NAT IPs for customersASSIGNED PAMay 9, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.49.0 - 81.200.49.254255NET-TVTRINEC-49CBKS Trinec - IPs for end customersASSIGNED PAMay 9, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.50.0/23512NET-TVTRINEC-C1Kabelova televize TrinecASSIGNED PAMar 28, 2007abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.52.0 - 81.200.52.9596NET-NEJTV-INTRAWEB2Intraweb servis ISPASSIGNED PAMay 9, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.52.96/2732NET-NEJTV-INTRAWEB5Intraweb servis ISPASSIGNED PAMay 9, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.52.128 - 81.200.52.22396NET-NEJTV-INTRAWEB3Intraweb servis ISPASSIGNED PAOct 10, 2014abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.52.224 - 81.200.52.25431NET-NEJTV-INTRAWEB4Intraweb servis ISPASSIGNED PAMay 9, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.53.0/24256NET-TVTRINEC-C3Kabelova televize Trinec (subscribers)ASSIGNED PAOct 1, 2009abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.54.128/2664NET-TVTRINEC-IW2Intraweb servis s.r.o.ASSIGNED PAOct 1, 2009abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.54.192/2664NET-TVTRINEC-IWIntraweb servis s.r.o.ASSIGNED PAJul 28, 2009abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.55.0/2732NET-BKS-PP1BKS infrastructure point to point linksASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.55.32 - 81.200.55.409NET-BKS-SITELBKS SitelASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.55.41 - 81.200.55.12787NET-BKS-PP2BKS infrastructure point to point linksASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.55.128/2732NET-BKS-37-BV-NATBKS Breclav NAT IPs for end-customersASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.55.160/2732NET-BKS-38-HB-NATBKS Havlickuv Brod NAT IPs for end-customersASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.55.224/2732NET-BKS-31-TA-NATBKS Tabor NAT IPs for end-customersASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.56.32/2816NEJCZ-VENDRYNEunknownASSIGNED PAAug 13, 2022abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.56.176/298CZ-NEJ-Sezimovo-Usti-NAT-clientsunknownASSIGNED PAFeb 5, 2019abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.57.0/25128NEJ-LIBEREC-PUB1LiberecASSIGNED PAJun 25, 2018abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.57.128/2732NEJ-LIBEREC-NAT1LiberecASSIGNED PAJun 25, 2018abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.57.160/2816NEJ-BRECLAV-NAT1BreclavASSIGNED PAJun 25, 2018abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.57.176/2816NEJ-VAMBERK-PUBVamberkASSIGNED PAJun 25, 2018abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.128/2664NET-BKS-31-TABOR1BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.192/298NET-BKS-31-TABOR2BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.200/298NET-BKS-31-TABOR3BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.208/298NET-BKS-31-SZSTABORVyssi odborna skola a Stredni zemedelska skola Tabor (ORG-VOSA2-RIPE)ASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.216/298NET-BKS-31-TABOR4BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.224 - 81.200.58.24724NET-BKS-31-KPSOFTLadislav Kubes - K&Psoft (ORG-LKK1-RIPE)ASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.58.248/298NET-BKS-31-ZSPLANAZakladni skola Plana nad LuzniciASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.0/298NET-BKS-31-SOUStredni skola obchodu, sluzeb a remesel (ORG-SSOS2-RIPE)ASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.8/298NET-BKS-31-SSSStredni skola spoju a informatiky (ORG-SSSA9-RIPE)ASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.16/2816NET-BKS-31-ROUTERSBKS Tabor routersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.32/2732NET-BKS-31-TABOR-KOVAKBKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.64/2732NET-BKS-31-TABOR5BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.96/2816NET-BKS-31-TABOR6BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.112/298NET-BKS-31-TABOR-PLANABKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.120/298NET-BKS-31-CMTSBKS Tabor CMTS subnet and IPTV distributionASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.128/2664NET-BKS-31-TABOR7BKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.192/2732NET-BKS-31-TABOR-OHSBKS Tabor cable modem customersASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.224/298NET-BKS-31-TABOR-WIFI1BKS Tabor WiFi customers KopecekASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.232/298NET-BKS-31-SOU2Stredni skola obchodu, sluzeb a remesel (ORG-SSOS2-RIPE)ASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.240/298NET-BKS-31-SSS2Stredni skola spoju a informatiky (ORG-SSSA9-RIPE)ASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.59.248/298NET-BKS-31-TABOR-WIFI2BKS Tabor WiFi customers Pra3?4ákASSIGNED PAJul 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.60.0/25128NET-BKS-33-PRBKS PrachaticeASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.60.160/2732NET-BKS-39-VM-CMTSBKS Velke Mezirici cable modem customersASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.61.0/24256NET-BKS-L33-2BKS Prachatice 2ASSIGNED PAOct 1, 2009abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.62.0/25128NET-BKS-38-HB-CMTSBKS Havlickuv Brod cable modem customersASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.63.0/25128NET-BKS-37-BV-CMTSBKS Breclav cable modem customersASSIGNED PAApr 27, 2010abuse@o2.cz
via CZ-CZNET-20060601
└ 81.200.63.128 - 81.200.63.254127NET-BKS-37-BV-FIBERBKS Breclav Fiber-optics customersASSIGNED PAApr 28, 2010abuse@o2.cz
via CZ-CZNET-20060601

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

4,096 addresses
TypeAddressesShareRanges
Residential2,80168%9
Business1,29532%37

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS41046

CZ
Name
O2 Czech Republic, a.s.
Type
Internet provider
Registered
Jun 6, 2006
Domain
o2.cz
Website
www.nej.cz
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed