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Data as of Nov 10, 2026

221.133.2.0/24

1 residential-proxy exit · 30 days

Sai gon Postel Corporation

Announcement
221.133.0.0/22
RPKI valid
Announced by
AS7602
Type
Residential
56% of it

Residential-proxy exits

Proxy exits
1
0.39% of its addresses · 30 days
Always-on exits
1
100% of its exits
Providers
19
selling exits here
Oct 11, 2026 – Nov 8, 2026

Exits seen per day

1.3K observations

Proxy providers listing exits

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  • Infatica
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  • Proxy-Seller
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  • Proxyma
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Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
221.133.0.0/20
since Jun 2016
AS7602Residential2
1 always on
Sai gon Postel Corporation

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
221.133.0.0/198,192SPT-VNSai gon Postel CorporationALLOCATED PORTABLE—hm-changed@vnnic.vn
└ 221.133.2.20/304SPT-NETSaigon Postel Corp.ASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.28/304FAIRFIELDVN-VNCTY FAIRFIELD Via??t NamASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.32/304VNMOTORS-VNVietnam Motors Co., LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.36/304STS-VNSPT Corp.ASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.40/304SOMOTNET-VNsomotNET Co., LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.44/304AULAC-NETCong ty Co phan Chung khoan au LacASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.52/304SEDONASUITE-NETSedona Suite HotelASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.56/304SOCIETE_GENERAL-VNCA?ng ty TA i chA?nh Via??t Societe GeneralASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.60/304SOMOTNET-VNsomotNET Co., LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.68/304SYMRISE-VNSymrise Pte. LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.72/304CMC-VNCMC Corp.ASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.76/304ASCENDAS-VNAscendas Services Vietnam Pte.,LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.80/304sig-VNSIG Co LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.88/304BrainWorksVN-NETBrainWorks Vietnam Co., LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.92/304LOTTEMART-NETLotte MartASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.96/304HoaiAnhLe-NETHoai Anh Le Co., LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.104/304VTC-NETVTCASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.108/304DAIKO_VN-NETDaiko VietnamASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.112/304SFONE-NETS-TelecomASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.116/304dongabank-NETDong A BankASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.120/304STS-NETSPT Corp.ASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.128/304IPT-NETIP Telecom CenterASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.196/304VNGT-VNTrung tA?m Via? n ThA?ng Tha?? Ha?? Ma??iASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.200/304VNGT-NETTrung tA?m Vien Thong The He MoiASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.204/304SCTV-NETSCTVASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.208/304VIETUU-NETViet Uu Co., LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.244/304IKEA_ASIAPACIFIC-NETVPA?D IKEA Asia PacificASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.248/304SFONE-NETS-TelecomASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.2.252/304LEGEND-NETLegend HotelASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN

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

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

256 addresses
TypeAddressesShareRanges
Residential14456%8
Business11244%28

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 221.133.0.0/22

Prefix
221.133.0.0/22
Announced by
AS7602 Sai gon Postel Corporation
Type
Residential
Proxy exits
1
Always-on exits
1
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