subnet.im

AS219427VERTEXCORE. PTE. LTD.

SingaporeRegistryRIPE NCC

As of 27th September 2026, AS219427 (VERTEXCORE. PTE. LTD.), a network registered in Singapore with RIPE NCC, originates 21 IPv4 prefixes covering 5.4k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 15,035th-largest of the 79,523 networks we see originating IPv4, and the 104th-largest of 446 in Singapore. It is seen behind 2 upstream networks, most often AS29752 (Zenlayer Inc) and AS48266 (Catixs Ltd). 70% of its announcements have a valid RPKI ROA; 9 are RPKI-invalid. 70% 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

21

IPv6 prefixes

9

IPv4 addresses

5.4k

IPv6 /64s

309B

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: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS219427VERTEXCORE. PTE. …This networkAS29752Zenlayer IncAS48266Catixs LtdAS4229Zenlayer IncAS174Cogent Communicat…AS9002RETN Limited

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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS219427
NetworkCountryRelationshipPathsVantage pts
AS29752Zenlayer IncUSPeer1,67280
AS48266Catixs LtdGBPeer455

Prefixes

All 30

The largest blocks AS219427 originates, widest first.

Largest prefixes originated by AS219427
PrefixAddressesVisibility
37.230.63.0/2425680/81
40.223.7.0/2425680/81
62.105.198.0/2425678/81
64.204.177.0/2425679/81
72.244.85.0/2425679/81
82.41.129.0/2425679/81
82.110.51.0/2425680/81
146.103.22.0/2425680/81
152.234.130.0/2425680/81
152.234.133.0/2425680/81

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

  • Valid70.0%21
  • Invalid30.0%9
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more70.0%21
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%30.0%9

Prefix sizes

IPv4 — 21 prefixes

IPv6 — 9 prefixes

  • /2934.4B × /64100.0%9

Recent changes

Announcements that started or stopped since 28th Aug 2026.

31 announced and 59 withdrawn in all; the most recent are shown.

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