subnet.im

AS140929T20025

SingaporeRegistryAPNIC

As of 10th November 2026, AS140929 (T20025), a network registered in Singapore with APNIC, originates 2 IPv4 prefixes covering 34.8k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 5,328th-largest of the 80,733 networks we see originating IPv4, and the 45th-largest of 450 in Singapore. It is seen behind 2 upstream networks, most often AS3758 (SingNet) and AS4657 (StarHub Ltd), and in front of 1 downstream network. 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

2

IPv6 prefixes

1

IPv4 addresses

34.8k

IPv6 /64s

65.5k

Upstream graph

The networks AS140929 is seen behind, one and two hops out, drawn from real AS paths.

AS140929Toward the internet core
Upstream graph for AS140929: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS140929T20025This networkAS3758SingNetAS4657StarHub LtdAS6453TATA Communicatio…AS7473Singapore Telecom…AS1299Arelion (fka. Tel…AS18106Viewqwest Pte Ltd

Networks observed one and two hops upstream of AS140929 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS140929
NetworkCountryRelationshipPathsVantage pts
AS3758SingNetSGPeer2,367135
AS4657StarHub LtdSGPeer528125

Prefixes

The largest blocks AS140929 originates, widest first.

Largest prefixes originated by AS140929
PrefixAddressesVisibility
222.165.0.0/1732.8k76/76
58.146.144.0/212k76/76
2406:3000:e::/4865.5k × /6462/63

Routing health

How AS140929'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS140929 started or stopped in this period.

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