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Data as of Nov 7, 2026

37.221.240.0/20

208 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

Residential-proxy exits

Proxy exits
208
5.1% of its addresses · 30 days
Always-on exits
36
17% of its exits
Spread
15 of 16
/24s with at least one exit
Providers
89
selling exits here
Oct 8, 2026 – Nov 6, 2026

Exits seen per day

75K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
37.221.248.0/24528
37.221.241.0/24520
37.221.252.0/24516
37.221.249.0/24516
37.221.250.0/24315
37.221.247.0/24314
37.221.243.0/24217
37.221.254.0/24216
37.221.242.0/24214
37.221.251.0/2429
37.221.245.0/24127
37.221.244.0/2412
37.221.253.0/2407
37.221.246.0/2406
37.221.240.0/2401

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FloppyData
  • GSocks
  • GeekProxy
  • Geonix
  • Geonode
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HideProxy
  • HydraProxy
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • LemonBright
  • LemonLabs
  • LightningProxies
  • MagneticProxy
  • MangoProxy
  • MarsProxies
  • Maskify
  • NSocks
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PrivateProxy
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • QUANTICDATA
  • RainProxy
  • RapidProxy
  • ResiProxies
  • RoamProxy
  • Shifter
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • Webshare
  • ZENPROXY_PREMIUM

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
37.221.241.0/24
since Apr 2025
AS204666Residential20
5 always on
ISP Alliance a.s.
37.221.242.0/24
since Apr 2025
AS204666Residential14
2 always on
ISP Alliance a.s.
37.221.243.0/24
since Apr 2025
AS204666Residential17
2 always on
ISP Alliance a.s.
37.221.245.0/24
since Apr 2025
AS204666Residential27
1 always on
ISP Alliance a.s.
37.221.247.0/24
since Apr 2025
AS204666Residential14
3 always on
ISP Alliance a.s.
37.221.248.0/24
since Apr 2025
AS204666Residential28
5 always on
ISP Alliance a.s.
37.221.249.0/24
since Apr 2025
AS204666Residential16
5 always on
ISP Alliance a.s.
37.221.250.0/24
since Apr 2025
AS204666Residential15
3 always on
ISP Alliance a.s.
37.221.251.0/24
since Apr 2025
AS204666Residential9
2 always on
ISP Alliance a.s.
37.221.252.0/24
since Apr 2025
AS204666Residential16
5 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
└ 37.221.244.0 - 37.221.244.191192TLAPNET-RNKTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PAFeb 16, 2013servis@tlapnet.cz
└ 37.221.244.192/2664TLAPNET-HOSPITAL-RNKTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PAFeb 16, 2013servis@tlapnet.cz
└ 37.221.245.0/24256TLAPNET-POLICKATlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PAFeb 16, 2013servis@tlapnet.cz
└ 37.221.246.0/23512TLAPNET-POL-RNKTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PAFeb 16, 2013servis@tlapnet.cz
└ 37.221.248.0/23512TLAPNET-PRELOUCTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.250.0/23512TLAPNET-SNSTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.252.0/24256TLAPNET-GJTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.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
└ 37.221.254.0/25128TLAPNET-PCETlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.254.128/25128TLAPNET-HBTlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz
└ 37.221.255.0/24256TLAPNET-CORETlapnet s.r.o. (ORG-TS210-RIPE) · CZASSIGNED PANov 5, 2012servis@tlapnet.cz

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS204666

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