subnet.im

AS219427VERTEXCORE. PTE. LTD.

SingaporeRegistryRIPE NCC

As of 11th November 2026, AS219427 (VERTEXCORE. PTE. LTD.), a network registered in Singapore with RIPE NCC, originates 33 IPv4 prefixes covering 8.4k addresses. By IPv4 address space that makes it the 11,829th-largest of the 80,747 networks we see originating IPv4, and the 85th-largest of 450 in Singapore. It is seen behind 1 upstream network, most often AS29752 (Zenlayer Inc). None of its announcements have a valid RPKI ROA; 33 are RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers, and 5 prefixes are also originated by another network.

At a glance

IPv4 prefixes

33

IPv6 prefixes

0

IPv4 addresses

8.4k

IPv6 /64s

0

Upstream graph

The networks AS219427 is seen behind, one and two hops out, drawn from real AS paths.

AS219427Toward the internet core
Upstream graph for AS219427: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS219427VERTEXCORE. PTE. …This networkAS29752Zenlayer IncAS3257GTT Communication…AS4229Zenlayer Inc

Networks observed one and two hops upstream of AS219427 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

3

adjacent networks

Upstreams
133%
Peers
267%
Downstreams
00%

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

Upstreams of AS219427
NetworkCountryRelationshipPathsVantage pts
AS29752Zenlayer IncUSPeer331

Prefixes

All 33

The largest blocks AS219427 originates, widest first.

Largest prefixes originated by AS219427
PrefixAddressesVisibility
50.2.14.0/242561/76
51.146.85.0/242561/76
51.194.44.0/242561/76
95.155.178.0/242561/76
134.202.197.0/242561/76
134.202.206.0/242561/76
134.202.217.0/242561/76
134.202.224.0/242561/76
134.202.229.0/242561/76
134.202.231.0/242561/76

Routing health

How AS219427'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
  • Invalid100.0%33
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%100.0%33

Prefix sizes

IPv4 — 33 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

37 announced and 6 withdrawn in all; the most recent are shown.

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