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Data as of Nov 10, 2026

221.133.27.0/24

No anonymizer space · no proxy exits in 30 days

Sai gon Postel Corporation

Announcement
221.133.26.0/23
RPKI valid
Announced by
AS7602
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Sep 2026
from AS7602 Sai gon Postel Corporation, after 14.2 years unannounced

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
└ 221.133.24.0/221,024ADSL-NETADSL serviceALLOCATED NON-PORTABLE—hm-changed@vnnic.vn

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 221.133.26.0/23

Prefix
221.133.26.0/23
Announced by
AS7602 Sai gon Postel Corporation
Type
Residential
RPKI
RPKI valid
Netname
ADSL-NET
Registrant
ADSL service
RIR
APNIC
IPv4 market

Holder

Holder in the market →
Organization
Sai gon Postel Corporation
Range
221.133.0.0/19
Registration type
ALLOCATED PORTABLE
Reallocated to
ADSL service
Reallocated range
221.133.24.0/22
Reallocation type
ALLOCATED NON-PORTABLE
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