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Data as of Nov 5, 2026

183.81.56.0/21

1 anonymizer address · 0.05% · VPN785 residential-proxy exits · 30 days

FPT Telecom Company · space held by FPT Telecom

Announcement
183.81.48.0/20
RPKI valid
Announced by
AS18403
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
785
38% of its addresses · 30 days
Always-on exits
7
0.89% of its exits
Spread
7 of 8
/24s with at least one exit
Providers
103
selling exits here
Oct 6, 2026 – Nov 4, 2026

Exits seen per day

176K observations
  • VPN · anonymizer
  • Residential

/24s with the most always-on exits

/24Always-on exitsProxy exits
183.81.56.0/244256
183.81.61.0/242255
183.81.62.0/2411
183.81.63.0/24079
183.81.60.0/24068
183.81.58.0/24065
183.81.57.0/24062

Proxy providers listing exits

  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BestProxy
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • GeekProxy
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HideProxy
  • HydraProxy
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LudaxProxy
  • MagneticProxy
  • MangoProxy
  • MarsProxies
  • Maskify
  • MrScraper
  • NSocks
  • NextProxy
  • NiuProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PSBProxy
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • RainProxy
  • RapidProxy
  • ResiProxies
  • RolaProxy
  • Shifter
  • Smartproxy
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • TrueProxies
  • TrustProxy
  • VProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • YumiProxy
IPv4 market

Path

1 · Holder
FPT Telecom
2 · Leased from
not leased
3 · Announced by
AS18403 FPT Telecom Company
since Jun 2025 · 16 mo ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 183.81.56.0/21/24s
VPN GateUniversity of Tsukuba
10.05%
1

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
183.81.0.0/18
since Sep 2019
AS18403Residential4,734
26 always on
FPT Telecom
183.81.0.0/17
since Feb 2019
AS18403Residential9,735
94 always on
FPT Telecom
More specific

Announcements inside

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
183.81.56.0/24
since Jun 2026
AS18403Residential256
4 always on
FPT Telecom
183.81.57.0/24
since Jun 2025
AS18403Residential62FPT Telecom
183.81.58.0/24
since May 2025
AS18403Residential65FPT Telecom
183.81.60.0/24
since Jun 2025
AS18403Residential10.39%VPNVPN servicesoperated by VPN Gate68FPT Telecom
183.81.61.0/24
since Jun 2025
AS18403Residential255
2 always on
FPT Telecom
183.81.62.0/24
since May 2018
AS18403Residential1
1 always on
FPT Telecom
183.81.63.0/24
since Jun 2025
AS18403Residential79FPT Telecom

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
183.81.0.0/1732,768FPT-VNFPT TelecomALLOCATED PORTABLE—hm-changed@vnnic.vn
└ 183.81.48.0/204,096FPTDYNAMICIP-NETFPT Telecom CompanyASSIGNED NON-PORTABLE—hm-changed@vnnic.vn

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Residential2,047>99%9
VPNanonymizer10.05%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 183.81.48.0/20

Prefix
183.81.48.0/20
Announced by
AS18403 FPT Telecom Company
Type
Residential
Anonymizer addresses
none
Proxy exits
1,739
Always-on exits
10
RPKI
RPKI valid
Netname
FPTDYNAMICIP-NET
Registrant
FPT Telecom Company
RIR
APNIC
IPv4 market

Holder

Holder in the market →
Organization
FPT Telecom
Range
183.81.0.0/17
Registration type
ALLOCATED PORTABLE
Origin network

AS18403

VN
Name
FPT Telecom Company
Type
Internet provider
Registered
Jan 3, 2003
Domain
fpt.vn
Website
www.fpt.vn
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed