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Data as of Nov 5, 2026

183.81.48.0/20

1 anonymizer address · 0.02% · VPN1,738 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
1,738
42% of its addresses · 30 days
Always-on exits
10
0.58% of its exits
Spread
13 of 16
/24s with at least one exit
Providers
110
selling exits here
Oct 6, 2026 – Nov 4, 2026

Exits seen per day

343K 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
183.81.55.0/241256
183.81.50.0/241254
183.81.48.0/24165
183.81.62.0/2411
183.81.49.0/240255
183.81.63.0/24079
183.81.60.0/24068
183.81.54.0/24066
183.81.58.0/24065
183.81.57.0/24062
183.81.51.0/24057

Proxy providers listing exits

  • 2Captcha
  • 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
  • IPCola
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KindProxy
  • KocerRoxy
  • Kookey
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MagneticProxy
  • MangoProxy
  • MarsProxies
  • Maskify
  • MoMoProxy
  • MrScraper
  • NSocks
  • NextProxy
  • NiuProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PSBProxy
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • 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 183.81.48.0/20/24s
VPN GateUniversity of Tsukuba
10.02%
1

Lineage

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

183.81.48.0/20

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
    as part of 183.81.0.0/18
    183.81.0.0/18
  3. Feb 8, 2010– Aug 5, 2020
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  4. Jan 17, 2017
    Route object
    AS18403 FPT Telecom Company
    NTTCOM route object for AS18403 FPT Telecom Company, maintainer MAINT-CMI-INT-HK
  5. Jan 17, 2017
    Route object
    AS18403 FPT Telecom Company
    RADB route object for AS18403 FPT Telecom Company, maintainer MAINT-AS58453
    183.81.48.0/21
  6. Jan 17, 2017
    Route object
    AS18403 FPT Telecom Company
    NTTCOM route object for AS18403 FPT Telecom Company, maintainer MAINT-CMI-INT-HK
    183.81.48.0/21
  7. Sep 29, 2019– today
    Announced
    AS18403 FPT Telecom Company
    as part of 183.81.0.0/18
    183.81.0.0/18
  8. Oct 17, 2020– Nov 9, 2020
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  9. Jun 14, 2021– Sep 5, 2021
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  10. Jan 4, 2022– Nov 23, 2022
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  11. Jan 11, 2023– Oct 1, 2023
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  12. Nov 19, 2023– Feb 22, 2024
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  13. Jun 29, 2025– today
    Announced
    AS18403 FPT Telecom Company
    Internet provider
  14. today
    Registry record
    FPT Telecom
    ALLOCATED PORTABLE
    183.81.0.0/17
  15. today
    Assigned
    FPT Telecom Company
    ASSIGNED NON-PORTABLE
    183.81.48.0/20
  16. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
  17. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.48.0/21
  18. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.48.0/22
  19. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.48.0/23
  20. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.50.0/23
  21. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.52.0/22
  22. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.52.0/23
  23. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.52.0/24
  24. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.53.0/24
  25. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.54.0/23
  26. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.56.0/21
  27. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.56.0/22
  28. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.56.0/23
  29. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.58.0/23
  30. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.59.0/24
  31. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.60.0/22
  32. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.60.0/23
  33. today
    Route object
    AS18403 FPT Telecom Company
    APNIC route object for AS18403 FPT Telecom Company, maintainer MAINT-VN-FPT
    183.81.62.0/23
  34. today
    Used
    VPN Gate
    VPN

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
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

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
183.81.48.0/24
since Jun 2025
AS18403Residential65
1 always on
FPT Telecom
183.81.49.0/24
since Jun 2025
AS18403Residential255FPT Telecom
183.81.50.0/24
since Jun 2025
AS18403Residential254
1 always on
FPT Telecom
183.81.51.0/24
since Jun 2025
AS18403Residential57FPT Telecom
183.81.54.0/24
since Jun 2025
AS18403Residential66FPT Telecom
183.81.55.0/24
since Jan 2026
AS18403Residential256
1 always on
FPT Telecom
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 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
└ 183.81.48.0/204,096FPTDYNAMICIP-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

4,096 addresses
TypeAddressesShareRanges
Residential4,095>99%16
VPNanonymizer10.02%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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