subnet.im

AS138345StarHub Ltd

SingaporeRegistryAPNIC

As of 27th September 2026, AS138345 (StarHub Ltd), a network registered in Singapore with APNIC, originates 58 IPv4 prefixes covering 171k addresses and 367 IPv6 prefixes. By IPv4 address space that makes it the 1,507th-largest of the 79,540 networks we see originating IPv4, and the 12th-largest of 446 in Singapore. It is seen behind 1 upstream network, most often AS4657 (StarHub Ltd). 32% of its announcements have a valid RPKI ROA; 290 are RPKI-invalid. 20% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

58

IPv6 prefixes

367

IPv4 addresses

171k

IPv6 /64s

4.8M

Upstream graph

The networks AS138345 is seen behind, one and two hops out, drawn from real AS paths.

AS138345Toward the internet core
Upstream graph for AS138345: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS138345StarHub LtdThis networkAS4657StarHub LtdAS1299Arelion (fka. Tel…AS18106Viewqwest Pte Ltd

Networks observed one and two hops upstream of AS138345 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 AS138345
NetworkCountryRelationshipPathsVantage pts
AS4657StarHub LtdSGPeer7,631146

Prefixes

All 425

The largest blocks AS138345 originates, widest first.

Largest prefixes originated by AS138345
PrefixAddressesVisibility
171.207.0.0/1816.4k82/82
113.10.96.0/198.2k82/82
117.20.160.0/198.2k82/82
171.0.64.0/198.2k82/82
171.0.128.0/198.2k82/82
171.0.160.0/198.2k82/82
171.0.192.0/198.2k82/82
171.0.224.0/198.2k82/82
171.207.128.0/198.2k82/82
171.207.160.0/198.2k82/82

Routing health

How AS138345'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

  • Valid31.8%135
  • Invalid68.2%290
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more19.5%83
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%80.5%342

Prefix sizes

IPv4 — 58 prefixes

IPv6 — 367 prefixes

  • /46262k × /640.5%2
  • /47131k × /641.1%4
  • /4865.5k × /645.2%19
  • /49 and longerAggregated93.2%342

Recent changes

Announcements that started or stopped since 29th Aug 2026.

  • Withdrawn117.20.140.0/2421st Sept 2026
  • Withdrawn117.20.141.0/2421st Sept 2026
  • Withdrawn117.20.142.0/2421st Sept 2026
  • Withdrawn117.20.143.0/2421st Sept 2026
  • Withdrawn117.20.144.0/2421st Sept 2026
  • Withdrawn117.20.145.0/2421st Sept 2026
  • Withdrawn117.20.146.0/2421st Sept 2026
  • Withdrawn117.20.147.0/2421st Sept 2026
  • Withdrawn2406:3000:214:2000::/5121st Sept 2026
  • Withdrawn2406:3000:214:4000::/5121st Sept 2026
  • Withdrawn2406:3000:214:6000::/5121st Sept 2026
  • Withdrawn2406:3000:214:8000::/5121st Sept 2026

0 announced and 16 withdrawn in all; the most recent are shown.

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