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Data as of Nov 15, 2026

37.221.253.0/24

7 residential-proxy exits · 30 days

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

Announcement
37.221.240.0/20
RPKI valid
Announced by
AS204666
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
7
2.7% of its addresses · 30 days
Providers
36
selling exits here
Oct 16, 2026 – Nov 14, 2026

Exits seen per day

250 observations

Proxy providers listing exits

  • 2Captcha
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • EnigmaProxy
  • FastProxy
  • FlashProxy
  • GSocks
  • GonzoProxy
  • IPFly
  • IPROCKET_PREMIUM
  • Infatica
  • KocerRoxy
  • LemonBright
  • LemonPrime
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Novada
  • PROXYLANE
  • PROXYSCRAPE
  • Proxiware
  • Proxy-Seller
  • Proxy302
  • ProxyEmpire
  • ProxyHat
  • ProxyWing
  • Proxyma
  • PuraRoute
  • RainProxy
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VitalExclusive

Registrations in this block

The registry's network records over this block, widest first, each 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
└ 37.221.253.0/2664TLAPNET-VLKANECTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.253.64/2664TLAPNET-LUSTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.253.128/2664TLAPNET-KOLINTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.253.192/2664TLAPNET-SVITAVYTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced 37.221.240.0/20

37.221.240.0/20

Routing history

Pattern
Rotating
First seen
May 2012
Current origin since
May 2025 · 1.5 yr
Origin networks
4
Last change of origin
May 2025
Recorded history

History

Handoffs
3