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Data as of Nov 6, 2026

212.4.152.0/24

4 residential-proxy exits · 30 days

O2 Czech Republic, a.s.

Announcement
212.4.128.0/19
RPKI valid
Announced by
AS12570
Type
Business
98% of it

Residential-proxy exits

Proxy exits
4
1.6% of its addresses · 30 days
Always-on exits
2
50% of its exits
Providers
28
selling exits here
Oct 7, 2026 – Nov 5, 2026

Exits seen per day

4.7K observations

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • DataImpulse
  • Decodo
  • Evomi
  • FastProxy
  • FlashProxy
  • GonzoProxy
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • LemonBright
  • Oxylabs
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyWing
  • Proxyma
  • RainProxy
  • Shifter
  • Thordata
  • VitalExclusive
  • Webshare

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
212.4.128.0/198,192CZ-CZNET-20080611O2 Czech Republic, a.s. (ORG-STAN1-RIPE) · CZALLOCATED PAJun 11, 2008abuse@o2.cz
└ 212.4.152.0 - 212.4.152.2324SELFNET-CZSelf Servis Ltd.ASSIGNED PAOct 30, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.24/298SALAMOUNA-CZSalamouna.cz s.r.o.ASSIGNED PAOct 30, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.32/298SELFNET-CZSelf Servis Ltd.ASSIGNED PAOct 25, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.40 - 212.4.152.9960SELFNET-CZSelf Servis Ltd.ASSIGNED PANov 28, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.104/298Slapanov-CZMesto SlapanovASSIGNED PAOct 25, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.112 - 212.4.152.18776SELFNET-CZSelf Servis Ltd.ASSIGNED PAOct 25, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.188/304ZEALunknownASSIGNED PAOct 25, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.192/298BIT-MANAGERBiT ManagerASSIGNED PAOct 25, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.200/304ZENITunknownASSIGNED PAJul 12, 2016abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.204 - 212.4.152.21512SELFNET-CZSelf Servis Ltd.ASSIGNED PAOct 25, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.216/298SPRINTELSprintel s.r.o.ASSIGNED PAMar 19, 2012abuse@o2.cz
via CZ-CZNET-20080611
└ 212.4.152.224/2732AVG-CZAVG Technologies CZ, s.r.o.ASSIGNED PADec 1, 2010abuse@o2.cz
via CZ-CZNET-20080611

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

256 addresses
TypeAddressesShareRanges
Business25298%12
Residential41.6%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 212.4.128.0/19

Prefix
212.4.128.0/19
Announced by
AS12570 O2 Czech Republic, a.s.
Type
Residential
Proxy exits
87
Always-on exits
12
RPKI
RPKI valid
Netname
CZ-CZNET-20080611
Registrant
O2 Czech Republic, a.s.
RIR
RIPE NCC
Origin network

AS12570

CZ
Name
O2 Czech Republic, a.s.
Type
Internet provider
Registered
Jul 28, 1999
Domain
o2.cz
Website
www.itself.cz/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed