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Data as of Nov 6, 2026

37.221.243.0/24

17 residential-proxy exits · 30 days

Jiri Tlapak · space held by ISP Alliance a.s.

Announcement
this exact prefix
RPKI valid
Announced by
AS204666
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
17
6.6% of its addresses · 30 days
Always-on exits
2
12% of its exits
Providers
32
selling exits here
Oct 7, 2026 – Nov 5, 2026

Exits seen per day

1.9K observations

Proxy providers listing exits

  • 2Captcha
  • AnyIP
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CliProxy
  • EnigmaProxy
  • FastProxy
  • FlashProxy
  • GonzoProxy
  • IPFly
  • IPOasis
  • IPPeak
  • Infatica
  • LemonBright
  • LightningProxies
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Proxiware
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyHat
  • Proxyma
  • RainProxy
  • Shifter
  • Thordata
  • VantageProxies
  • VibeProxies
  • VitalExclusive

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
37.221.240.0/20
since May 2025
AS204666Residential207
36 always on
ISP Alliance 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
37.221.240.0/204,096CZ-GRAPESC-20120410ISP Alliance a.s. (ORG-GSA22-RIPE) · CZALLOCATED PAApr 10, 2012abuse@ispalliance.cz
└ 37.221.240.0/221,024TLAPNET-CaslavTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PAFeb 16, 2013servis@tlapnet.cz

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
ISP Alliance a.s.
Handle
ORG-GSA22-RIPE
Range
37.221.240.0/20
Registration type
ALLOCATED PA
Record created
Apr 10, 2012
Origin network

AS204666

CZ
Name
Jiri Tlapak
Type
Internet provider
Registered
Jan 29, 2018
Domain
tlapnet.cz
Spamhaus ASN-DROP
not listed