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AS154350ATZ CORP JOINT STOCK COMPANY

VietnamRegistryAPNIC

As of 11th November 2026, AS154350 (ATZ CORP JOINT STOCK COMPANY), a network registered in Vietnam with APNIC, originates 1 IPv4 prefix covering 512 addresses. By IPv4 address space that makes it the 49,318th-largest of the 80,743 networks we see originating IPv4, and the 312th-largest of 537 in Vietnam. It is seen behind 1 upstream network, most often AS38733 (CMC Telecom Infrastructure Company). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

512

IPv6 /64s

0

Upstream graph

The networks AS154350 is seen behind, one and two hops out, drawn from real AS paths.

AS154350Toward the internet core
Upstream graph for AS154350: 2 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS154350ATZ CORP JOINT ST…This networkAS38733CMC Telecom Infra…AS45903CMC Telecom Infra…

Networks observed one and two hops upstream of AS154350 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS154350
NetworkCountryRelationshipPathsVantage pts
AS38733CMC Telecom Infrastructure CompanyVNPeer7676

Prefixes

The largest blocks AS154350 originates, widest first.

Largest prefixes originated by AS154350
PrefixAddressesVisibility
138.252.152.0/2351276/76

Routing health

How AS154350's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%1
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%1
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS154350 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.