subnet.im

AS138345StarHub Ltd

SingaporeRegistryAPNIC

As of 12th November 2026, AS138345 (StarHub Ltd), a network registered in Singapore with APNIC, originates 66 IPv4 prefixes covering 173k addresses and 375 IPv6 prefixes. By IPv4 address space that makes it the 1,524th-largest of the 80,772 networks we see originating IPv4, and the 12th-largest of 450 in Singapore. It is seen behind 1 upstream network, most often AS4657 (StarHub Ltd). 32% of its announcements have a valid RPKI ROA; 298 are RPKI-invalid. 21% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

66

IPv6 prefixes

375

IPv4 addresses

173k

IPv6 /64s

4.9M

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 LtdSGPeer8,033141

Prefixes

All 441

The largest blocks AS138345 originates, widest first.

Largest prefixes originated by AS138345
PrefixAddressesVisibility
171.207.0.0/1816.4k78/78
113.10.96.0/198.2k78/78
117.20.160.0/198.2k78/78
171.0.64.0/198.2k78/78
171.0.128.0/198.2k78/78
171.0.160.0/198.2k78/78
171.0.192.0/198.2k78/78
171.0.224.0/198.2k78/78
171.207.128.0/198.2k78/78
171.207.160.0/198.2k78/78

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

  • Valid32.4%143
  • Invalid67.6%298
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more20.6%91
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%79.4%350

Prefix sizes

IPv4 — 66 prefixes

IPv6 — 375 prefixes

  • /46262k × /640.5%2
  • /47131k × /641.1%4
  • /4865.5k × /645.1%19
  • /49 and longerAggregated93.3%350

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS138345 started or stopped in this period.

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