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Data as of Nov 15, 2026

183.81.0.0/18

1 anonymizer address · <0.01% · VPN5,242 residential-proxy exits · 30 days

FPT Telecom Company · space held by FPT Telecom

Announcement
this exact prefix
RPKI valid
Announced by
AS18403
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
5,242
32% of its addresses · 30 days
Always-on exits
53
1.0% of its exits
Spread
46 of 64
/24s with at least one exit
Providers
159
selling exits here
Oct 16, 2026 – Nov 14, 2026

Exits seen per day

976K observations
  • VPN · anonymizer
  • Residential

/24s with the most always-on exits

/24Always-on exitsProxy exits
183.81.56.0/2410256
183.81.21.0/2410256
183.81.0.0/248256
183.81.9.0/245256
183.81.50.0/244254
183.81.19.0/243256
183.81.61.0/243256
183.81.18.0/243256
183.81.11.0/24233
183.81.49.0/241256
183.81.8.0/241251
183.81.41.0/241122
183.81.10.0/24122
183.81.35.0/2412
183.81.55.0/240256
183.81.3.0/240146
183.81.1.0/240146
183.81.25.0/240132
183.81.40.0/240120
183.81.27.0/240103
183.81.63.0/240102
183.81.58.0/24097
183.81.47.0/24095
183.81.16.0/24090

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 911Proxy
  • 9HTTP
  • 9Proxy
  • AETHYN_BASIC
  • AETHYN_ELITE
  • APROXY
  • ASHBURNPROXIES
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BestProxy
  • BirdProxies
  • BlurPath
  • BottingTools
  • Bright Data
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CYBERYOZH
  • CatProxies
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EVOPROXY
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FLAMEPROXIES_BASIC
  • FLAMEPROXIES_PREMIUM
  • FLEETPROXY
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GEEKPROXY_FLEX
  • GEEKPROXY_TURBO
  • GSocks
  • GeekProxy
  • Geonix
  • Geonode
  • GhostConnect
  • GloryCloud
  • GoProxies
  • GonzoProxy
  • HASDATA
  • HELODATA
  • HPROXY
  • HideProxy
  • HydraProxy
  • INSTANTSOCKS_BASIC
  • INSTANTSOCKS_PREMIUM
  • IP2WORLD
  • IPCola
  • IPFly
  • IPMUSK
  • IPOasis
  • IPPeak
  • IPROCKET_BASIC
  • IPROCKET_PREMIUM
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LOKIPROXY
  • LUMIPROXY
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MagneticProxy
  • MangoProxy
  • MarsProxies
  • Maskify
  • MoMoProxy
  • MrScraper
  • NSocks
  • NextProxy
  • NiuProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PROXIES.RIP
  • PROXORA
  • PROXYCOVE
  • PROXYFALL
  • PROXYLANE
  • PROXYON
  • PROXYSALE
  • PROXYSAVER
  • PROXYSCRAPE
  • PROXYWING_BASIC
  • PROXY_CC
  • PSBProxy
  • PYPROXY
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy302
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • QUANTICDATA
  • RH7Proxy
  • RainProxy
  • RapidProxy
  • ResiProxies
  • RoamProxy
  • RolaProxy
  • SIMPLYNODE
  • SOTAPROXY
  • SPYDERPROXY_BASIC
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Smartproxy
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • TORCHPROXIES_BASIC
  • TORCHPROXIES_PREMIUM
  • TORCHPROXIES_X
  • TalorData
  • Thordata
  • ThunderProxy
  • TrueProxies
  • TrustProxy
  • VProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • YumiProxy
  • ZENPROXY_LITE
  • ZENPROXY_PREMIUM
IPv4 market

Path

1 · Holder
FPT Telecom
2 · Leased from
not leased
3 · Announced by
AS18403 FPT Telecom Company
since Sep 2019 · 7.1 yr ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 183.81.0.0/18/24s
VPN GateUniversity of Tsukuba
1<0.01%
1

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

183.81.0.0/18

From the registry to its use

  1. Nov 24, 2009
    Route object
    AS18403 FPT Telecom Company
    RADB route object for AS18403 FPT Telecom Company, maintainer MAINT-AS18403
  2. Feb 8, 2010– Nov 8, 2013
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  3. Sep 8, 2010– Nov 13, 2017
    Announced
    AS18403 FPT Telecom Company
    as part of 183.81.0.0/17
    183.81.0.0/17
  4. Jan 25, 2018– Jun 17, 2018
    Announced
    AS18403 FPT Telecom Company
    as part of 183.81.0.0/17
    183.81.0.0/17
  5. Feb 13, 2019– today
    Announced
    AS18403 FPT Telecom Company
    as part of 183.81.0.0/17
    183.81.0.0/17
  6. Sep 29, 2019– today
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  7. today
    Registry record
    FPT Telecom
    ALLOCATED PORTABLE
    183.81.0.0/17
  8. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
  9. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.0.0/19
  10. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.32.0/19
  11. today
    Used
    VPN Gate
    VPN

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
183.81.0.0/17
since Feb 2019
AS18403Residential11,016
102 always on
FPT Telecom
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

Arrived
PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
183.81.0.0/20
since Jun 2025
AS18403Residential1,439
17 always on
FPT Telecom
183.81.0.0/24
since Jun 2026
AS18403Residential256
8 always on
FPT Telecom
183.81.1.0/24
since Jun 2025
AS18403Residential146FPT Telecom
183.81.2.0/24
since Jun 2025
AS18403Residential79FPT Telecom
183.81.3.0/24
since Jun 2025
AS18403Residential146FPT Telecom
183.81.4.0/24
since Jun 2025
AS18403Residential56FPT Telecom
183.81.5.0/24
since Jun 2025
AS18403Residential40FPT Telecom
183.81.6.0/23
since May 2025
AS18403Residential77FPT Telecom
183.81.8.0/24
since Jun 2025
AS18403Residential251
1 always on
FPT Telecom
183.81.9.0/24
since Jun 2026
AS18403Residential256
5 always on
FPT Telecom
183.81.10.0/23
since Dec 2021
AS18403Residential55
3 always on
FPT Telecom
183.81.12.0/24
since Jun 2025
AS18403Residential77FPT Telecom
183.81.15.0/24
since Jan 2026
AS18403ResidentialFPT Telecom
183.81.16.0/20
since Jun 2025
AS18403Residential1,506
16 always on
FPT Telecom
183.81.16.0/24
since Jun 2025
AS18403Residential10.39%VPNVPN servicesoperated by VPN Gate90FPT Telecom
183.81.17.0/24
since Jun 2025
AS18403Residential80FPT Telecom
183.81.18.0/23
since Jun 2025
AS18403Residential512
6 always on
FPT Telecom
183.81.20.0/24
since Jun 2025
AS18403Residential66FPT Telecom
183.81.21.0/24
since Oct 8, 2026
AS18403Residential256
10 always on
FPT Telecom
183.81.22.0/23
since May 2025
AS18403Residential36FPT Telecom
183.81.24.0/24
since Jun 2025
AS18403Residential44FPT Telecom
183.81.25.0/24
since Jun 2026
AS18403Residential132FPT Telecom
183.81.26.0/24
since Jun 2025
AS18403Residential14FPT Telecom
183.81.27.0/24
since Jun 2025
AS18403Residential103FPT Telecom
183.81.28.0/24
since Jun 2025
AS18403Residential54FPT Telecom
183.81.29.0/24
since Jun 2025
AS18403Residential33FPT Telecom
183.81.30.0/24
since Jun 2025
AS18403ResidentialFPT Telecom
183.81.31.0/24
since Oct 8, 2026
AS18403Residential86FPT Telecom
183.81.32.0/20
since Jun 2025
AS18403Residential425
2 always on
FPT Telecom
183.81.33.0/24
since Jun 2019
AS18403ResidentialFPT Telecom
183.81.35.0/24
since Oct 2019
AS18403Residential2
1 always on
FPT Telecom
183.81.37.0/24
since Feb 2020
AS18403ResidentialFPT Telecom
183.81.39.0/24
since Aug 2020
AS18403ResidentialFPT Telecom
183.81.40.0/24
since Jun 2025
AS18403Residential120FPT Telecom
183.81.41.0/24
since Jun 2025
AS18403Residential122
1 always on
FPT Telecom
183.81.46.0/23
since Jun 2025
AS18403Residential181FPT Telecom
183.81.48.0/20
since Jun 2025
AS18403Residential1,879
18 always on
FPT Telecom
183.81.48.0/24
since Jun 2025
AS18403Residential86FPT Telecom
183.81.49.0/24
since Jun 2025
AS18403Residential256
1 always on
FPT Telecom
183.81.50.0/24
since Jun 2025
AS18403Residential254
4 always on
FPT Telecom
183.81.51.0/24
since Jun 2025
AS18403Residential72FPT Telecom
183.81.54.0/24
since Jun 2025
AS18403Residential81FPT Telecom
183.81.55.0/24
since Jan 2026
AS18403Residential256FPT Telecom
183.81.56.0/24
since Jun 2026
AS18403Residential256
10 always on
FPT Telecom
183.81.57.0/24
since Jun 2025
AS18403Residential76FPT Telecom
183.81.58.0/24
since May 2025
AS18403Residential97FPT Telecom
183.81.60.0/24
since Jun 2025
AS18403Residential86FPT Telecom
183.81.61.0/24
since Jun 2025
AS18403Residential256
3 always on
FPT Telecom
183.81.62.0/24
since May 2018
AS18403Residential1FPT Telecom
183.81.63.0/24
since Jun 2025
AS18403Residential102FPT Telecom

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
183.81.0.0/1732,768FPT-VNFPT TelecomALLOCATED PORTABLE—hm-changed@vnnic.vn
└ 183.81.0.0/204,096FPTDYNAMICIP-NETFPT Telecom CompanyASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
└ 183.81.16.0/204,096FPTDYNAMICIP-NETFPT Telecom CompanyASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
└ 183.81.32.0/204,096FPTDYNAMICIP-NETFPT Telecom CompanyASSIGNED NON-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

16,384 addresses
TypeAddressesShareRanges
Residential16,383>99%55
VPNanonymizer1<0.01%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Feb 2010
Current origin since
Sep 2019 · 7.1 yr
Origin networks
1