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Data as of Nov 10, 2026

221.121.0.0/21

2 residential-proxy exits · 30 days

Sai gon Postel Corporation

Announcement
221.121.0.0/18
RPKI valid
Announced by
AS7602
Type
Residential

Residential-proxy exits

Proxy exits
2
0.10% of its addresses · 30 days
Spread
2 of 8
/24s with at least one exit
Providers
13
selling exits here
Oct 11, 2026 – Nov 8, 2026

Exits seen per day

932 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
221.121.2.0/2401
221.121.3.0/2401

Proxy providers listing exits

  • BottingTools
  • CatProxies
  • DataImpulse
  • EZProxies
  • Geonode
  • InfiniteProxies
  • NextProxy
  • ProxiesVision
  • Proxmint
  • Proxy4U
  • ProxyGeo
  • Q2IP
  • TrueProxies

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
221.121.0.0/24
since Oct 2025
AS7602ResidentialSai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL
221.121.1.0/24
since Aug 2026
AS7602ResidentialSai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL
221.121.2.0/24
since Jul 2026
AS7602Residential1Sai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL
221.121.3.0/24
since Aug 2026
AS7602Residential1Sai gon Postel Corporation
221.121.4.0/24
since Sep 28, 2026
AS7602ResidentialSai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL
221.121.5.0/24
since Sep 28, 2026
AS7602ResidentialSai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL
221.121.6.0/24
since Sep 28, 2026
AS7602ResidentialSai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL
221.121.7.0/24
since Sep 28, 2026
AS7602ResidentialSai gon Postel Corporation
via Dai IP su dung cho mang khach hang xDSL

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
221.121.0.0/1816,384SPT-VNSai gon Postel CorporationALLOCATED PORTABLE—hm-changed@vnnic.vn
└ 221.121.0.0/24256POPVungtau-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.1.0/24256POPDongNai-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.2.0/24256POPBinhDuong-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.4.0/24256POPTienGiang-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.5.0/24256POPAnGiang-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.6.0/24256POPKienGiang-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.7.0/24256POPCanTho-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 221.121.0.0/18

Prefix
221.121.0.0/18
Announced by
AS7602 Sai gon Postel Corporation
Type
Residential
Proxy exits
2
RPKI
RPKI valid
Netname
SPT-VN
Registrant
Sai gon Postel Corporation
RIR
APNIC
Origin network

AS7602

VN
Name
Sai gon Postel Corporation
Type
Internet provider
Registered
Aug 28, 2003
Domain
spt.vn
Website
www.spt.vn
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed