LAYER3 INTEL
Get started
Sign in
Data as of Nov 4, 2026

123.21.0.0/18

3,209 residential-proxy exits · 30 days

VNPT Corp · space held by Vietnam Posts and Telecommunications Group

Announcement
123.21.0.0/16
RPKI valid
Announced by
AS45899
Type
Residential

Residential-proxy exits

Proxy exits
3,209
20% of its addresses · 30 days
Always-on exits
340
11% of its exits
Spread
47 of 64
/24s with at least one exit
Providers
110
selling exits here
Oct 5, 2026 – Nov 3, 2026

Exits seen per day

291K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
123.21.43.0/2437110
123.21.42.0/2437108
123.21.40.0/2428102
123.21.50.0/2422101
123.21.38.0/241890
123.21.46.0/241178
123.21.15.0/241088
123.21.20.0/241068
123.21.17.0/24880
123.21.5.0/24878
123.21.26.0/24784
123.21.3.0/24778
123.21.9.0/24776
123.21.31.0/24771
123.21.8.0/24763
123.21.32.0/24747
123.21.21.0/24686
123.21.48.0/24684
123.21.11.0/24681
123.21.12.0/24678
123.21.29.0/24678
123.21.28.0/24677
123.21.16.0/24584
123.21.18.0/24581

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BestProxy
  • BirdProxies
  • BlurPath
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • CoreProxy
  • DataImpulse
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • FuseProxy
  • 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
  • NSocks
  • NextProxy
  • NiuProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Oxylabs
  • PSBProxy
  • PacketStream
  • PrivateByte
  • PrivateProxy
  • Proxies.fo
  • ProxiesVision
  • Proxio
  • Proxiware
  • Proxmint
  • Proxy-Cheap
  • Proxy-Seller
  • Proxy302
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • Q2IP
  • RainProxy
  • RapidProxy
  • RealProxy
  • ResiProxies
  • RoamProxy
  • RolaProxy
  • Shifter
  • Smartproxy
  • SpyderProxy
  • StrikeProxy
  • SwiftProxy
  • TalorData
  • Thordata
  • ThunderProxy
  • TrueProxies
  • VProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy

Announcements

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

PrefixOriginTypeProxy exitsHolderRPKI
123.21.0.0/20
since Mar 2010
AS45899Residential1,195
75 always on
Vietnam Posts and Telecommunications Group
123.21.16.0/20
since Mar 2010
AS45899Residential1,212
88 always on
Vietnam Posts and Telecommunications Group
123.21.32.0/20
since Aug 2016
AS45899Residential614
149 always on
Vietnam Posts and Telecommunications Group
123.21.38.0/24
since Nov 2021
AS45899Residential90
18 always on
Vietnam Posts and Telecommunications Group
123.21.40.0/24
since Nov 2021
AS45899Residential102
28 always on
Vietnam Posts and Telecommunications Group
123.21.41.0/24
since Nov 2021
AS45899ResidentialVietnam Posts and Telecommunications Group
123.21.42.0/24
since Nov 2021
AS45899Residential108
37 always on
Vietnam Posts and Telecommunications Group
123.21.43.0/24
since Nov 2021
AS45899Residential110
37 always on
Vietnam Posts and Telecommunications Group
123.21.46.0/24
since Nov 2021
AS45899Residential78
11 always on
Vietnam Posts and Telecommunications Group
123.21.48.0/20
since Aug 2016
AS45899Residential186
28 always on
Vietnam Posts and Telecommunications Group
123.21.48.0/24
since Nov 2021
AS45899Residential84
6 always on
Vietnam Posts and Telecommunications Group
123.21.50.0/24
since Nov 2021
AS45899Residential101
22 always on
Vietnam Posts and Telecommunications Group

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 123.21.0.0/16

Prefix
123.21.0.0/16
Announced by
AS45899 VNPT Corp
Type
Residential
Proxy exits
16,652
Always-on exits
1,087
RPKI
RPKI valid
Netname
VNPT-VN
Registrant
Vietnam Posts and Telecommunications Group
RIR
APNIC
Origin network

AS45899

VN
Name
VNPT Corp
Type
Internet provider
Registered
Aug 28, 2009
Domain
vnpt.vn
Website
www.vnpt.vn
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
6