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Data as of Nov 7, 2026

81.200.56.0/21

10 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS41046
Type
Residential
59% of it

Residential-proxy exits

Proxy exits
10
0.49% of its addresses · 30 days
Always-on exits
1
10% of its exits
Spread
6 of 8
/24s with at least one exit
Providers
31
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

5.2K observations
  • Residential
  • Business

/24s with the most always-on exits

/24Always-on exitsProxy exits
81.200.56.0/2411
81.200.58.0/2402
81.200.59.0/2402
81.200.61.0/2402
81.200.63.0/2402
81.200.62.0/2401

Proxy providers listing exits

  • 711Proxy
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • DataImpulse
  • Decodo
  • Evomi
  • FastProxy
  • FlashProxy
  • Geonode
  • GonzoProxy
  • IPRoyal
  • Infatica
  • LemonBright
  • Maskify
  • Oxylabs
  • PacketStream
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyRack
  • ProxyWing
  • Proxyma
  • RainProxy
  • Shifter
  • StrikeProxy
  • Thordata
  • VitalExclusive
  • Webshare

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
81.200.48.0/20
since Sep 2006
AS41046Residential25
2 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
└ 81.200.56.32/2816NEJCZ-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

2,048 addresses
TypeAddressesShareRanges
Residential1,20159%7
Business84741%28

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