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Data as of Nov 15, 2026

37.72.120.0/21

187 residential-proxy exits · 30 days

Spoldzielnia Telekomunikacyjna OST

Announcement
this exact prefix
RPKI valid
Announced by
AS38987
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
187
9.1% of its addresses · 30 days
Spread
8 of 8
/24s with at least one exit
Providers
92
selling exits here
Oct 16, 2026 – Nov 14, 2026

Exits seen per day

11K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
37.72.126.0/24031
37.72.127.0/24026
37.72.123.0/24024
37.72.122.0/24023
37.72.125.0/24022
37.72.120.0/24021
37.72.121.0/24021
37.72.124.0/24020

Proxy providers listing exits

  • 2Extract
  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • DataImpulse
  • Decodo
  • EVOPROXY
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FROXY
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GoProxies
  • HELODATA
  • HideProxy
  • IPFly
  • IPMUSK
  • IPPeak
  • IPROCKET_BASIC
  • IPROCKET_PREMIUM
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • LemonBright
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MangoProxy
  • MoMoProxy
  • NextProxy
  • NiuProxy
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PROXYLANE
  • PROXYSCRAPE
  • PROXYWING_BASIC
  • PrivateProxy
  • ProxiesVision
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • Proxy302
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxyma
  • PuraRoute
  • Q2IP
  • RainProxy
  • RapidProxy
  • RoamProxy
  • SPYDERPROXY_BASIC
  • SPYDERPROXY_PREMIUM
  • Shifter
  • SwiftProxy
  • TORCHPROXIES_BASIC
  • TORCHPROXIES_PREMIUM
  • TORCHPROXIES_X
  • Thordata
  • ThunderProxy
  • TrueProxies
  • VantageProxies
  • VitalExclusive
  • YumiProxy
  • ZENPROXY_LITE
  • ZENPROXY_PREMIUM

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
37.72.120.0/212,048PL-OST-20120127Spoldzielnia Telekomunikacyjna OST (ORG-OSTW2-RIPE) · PLALLOCATED PAJan 27, 2012abuse@ostnet.pl
└ 37.72.120.0/221,024OST-ISP-NET7Spoldzielnia Telekomunikacyjna OSTASSIGNED PADec 12, 2012abuse@ostnet.pl
via PL-OST-20120127
└ 37.72.124.0/23512OST-ISP-NET8Spoldzielnia Telekomunikacyjna OSTASSIGNED PAJan 16, 2014abuse@ostnet.pl
via PL-OST-20120127
└ 37.72.126.0/23512OST-ISP-NET11Spoldzielnia Telekomunikacyjna OSTASSIGNED PAOct 24, 2025abuse@ostnet.pl
via PL-OST-20120127

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
Feb 2012
Current origin since
Feb 2012 · 15 yr
Origin networks
1