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Data as of Nov 10, 2026

221.121.0.0/18

2 residential-proxy exits · 30 days

Sai gon Postel Corporation

Announcement
this exact prefix
RPKI valid
Announced by
AS7602
Type
Residential

Residential-proxy exits

Proxy exits
2
0.01% of its addresses · 30 days
Spread
2 of 64
/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 the announcement: those covering it, widest first, then every record inside it, 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
└ 221.121.12.0/24256STS-VNSPT Corp.ASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.121.16.0/24256POPDaNang-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.17.0/24256POPQuangNam-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.18.0/24256POPThuaThienHue-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.19.0/24256POPKhanhHoa-NETDai IP su dung cho mang khach hang xDSLALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.24.0/212,048ADSL-NETADSL serviceALLOCATED NON-PORTABLE—hm-changed@vnnic.vn
└ 221.121.32.0/198,192ADSL-NETADSL serviceALLOCATED NON-PORTABLE—hm-changed@vnnic.vn

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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