subnet.im

AS1548071-Second Online Technology Joint Stock Company

VietnamRegistryAPNIC

As of 11th November 2026, AS154807 (1-Second Online Technology Joint Stock…), a network registered in Vietnam with APNIC, originates 1 IPv4 prefix covering 512 addresses and 1 IPv6 prefix. 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 AS135905 (Vietnam P&T). None of its announcements have a valid RPKI ROA. 0% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

1

IPv6 prefixes

1

IPv4 addresses

512

IPv6 /64s

65.5k

Upstream graph

The networks AS154807 is seen behind, one and two hops out, drawn from real AS paths.

AS154807Toward the internet core
Upstream graph for AS154807: 2 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1548071-Second Online T…This networkAS135905Vietnam P&TAS45899VNPT Corp

Networks observed one and two hops upstream of AS154807 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

1

adjacent network

Upstreams
1100%
Peers
00%
Downstreams
00%

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

Upstreams of AS154807
NetworkCountryRelationshipPathsVantage pts
AS135905Vietnam P&TVNAdjacent9797

Prefixes

The largest blocks AS154807 originates, widest first.

Largest prefixes originated by AS154807
PrefixAddressesVisibility
160.236.196.0/2351255/76
2001:df7:53c0::/4865.5k × /6442/63

Routing health

How AS154807'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%2

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%100.0%2
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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