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Data as of Nov 15, 2026

37.21.0.0/18

1 anonymizer address · <0.01% · VPN1,733 residential-proxy exits · 30 days

PJSC Rostelecom

Announcement
37.21.0.0/17
RPKI valid
Announced by
AS12389
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
1,733
11% of its addresses · 30 days
Spread
64 of 64
/24s with at least one exit
Providers
110
selling exits here
Oct 16, 2026 – Nov 14, 2026

Exits seen per day

102K observations
  • VPN · anonymizer
  • Residential

/24s with the most always-on exits

/24Always-on exitsProxy exits
37.21.4.0/24044
37.21.20.0/24040
37.21.58.0/24038
37.21.56.0/24037
37.21.33.0/24035
37.21.3.0/24035
37.21.21.0/24034
37.21.11.0/24033
37.21.14.0/24033
37.21.28.0/24033
37.21.51.0/24033
37.21.19.0/24032
37.21.50.0/24032
37.21.55.0/24032
37.21.12.0/24031
37.21.25.0/24031
37.21.44.0/24030
37.21.60.0/24030
37.21.63.0/24030
37.21.57.0/24030
37.21.61.0/24029
37.21.59.0/24029
37.21.23.0/24029
37.21.5.0/24029

Proxy providers listing exits

  • 711Proxy
  • 911Proxy
  • 9Proxy
  • APROXY
  • ASHBURNPROXIES
  • Ake.net
  • B2Proxy
  • BartProxies
  • BestProxy
  • BirdProxies
  • BlurPath
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CROXY
  • CatProxies
  • CliProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EVOPROXY
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FLEETPROXY
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GonzoProxy
  • HELODATA
  • HPROXY
  • HideProxy
  • IPFly
  • IPMUSK
  • IPPeak
  • IPROCKET_BASIC
  • IPROCKET_PREMIUM
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • Kookey
  • LOKIPROXY
  • LUMIPROXY
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MangoProxy
  • Maskify
  • MoMoProxy
  • NSocks
  • NextProxy
  • NiuProxy
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PROXYFALL
  • PROXYLANE
  • PROXYON
  • PROXYSALE
  • PROXYSAVER
  • PROXYSCRAPE
  • PROXYWING_BASIC
  • PROXY_CC
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • RH7Proxy
  • RainProxy
  • RapidProxy
  • ResiProxies
  • SPYDERPROXY_BASIC
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Smartproxy
  • SwiftProxy
  • TORCHPROXIES_BASIC
  • TORCHPROXIES_PREMIUM
  • TORCHPROXIES_X
  • TrueProxies
  • VantageProxies
  • VitalExclusive
  • YumiProxy
  • ZENPROXY_LITE
  • ZENPROXY_PREMIUM
IPv4 market

Path

1 · Holder
PJSC Rostelecom
record created Dec 21, 2011
2 · Leased from
not leased
3 · Announced by
AS12389 PJSC Rostelecom
since Jul 2015 · 11.3 yr ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 37.21.0.0/18/24s
VPN GateUniversity of Tsukuba
1<0.01%
1

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
37.20.0.0/14
since Aug 2016
AS12389Residential38,875
261 always on
PJSC Rostelecom

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
37.20.0.0/14262,144RU-RTK-20111221PJSC Rostelecom (ORG-JR8-RIPE) · RUALLOCATED PADec 21, 2011abuse@rt.ru
└ 37.21.0.0/1816,384WEBSTREAMJSC Rostelecom regional branch "Siberia"ASSIGNED PAJan 12, 2012abuse@rt.ru
via RU-RTK-20111221

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

16,384 addresses
TypeAddressesShareRanges
Residential16,383>99%2
VPNanonymizer1<0.01%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

37.21.0.0/17

Routing history

Pattern
Stable
First seen
Feb 2013
Current origin since
Jul 2015 · 11 yr
Origin networks
2
Last change of origin
Jul 2015
Recorded history

History

Handoffs
1