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Data as of Nov 10, 2026

221.133.6.0/24

No anonymizer space · no proxy exits in 30 days

Sai gon Postel Corporation

Announcement
221.133.4.0/22
RPKI valid
Announced by
AS7602
Type
Residential
75% of it

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
└ 221.133.6.0/2732ASCENDAS-VNAscendas Services Vietnam Pte.,LtdASSIGNED NON-PORTABLE—hm-changed@vnnic.vn
via SPT-VN
└ 221.133.6.32/2732VTC-VNVTCASSIGNED 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
Residential19275%1
Business6425%2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 221.133.4.0/22

Prefix
221.133.4.0/22
Announced by
AS7602 Sai gon Postel Corporation
Type
Residential
Proxy 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