subnet.im

AS134963Alibaba Cloud (Singapore) Private Limited

SingaporeRegistryAPNIC

As of 27th September 2026, AS134963 (Alibaba Cloud (Singapore) Private…), a network registered in Singapore with APNIC, originates 265 IPv4 prefixes covering 74.2k addresses and 5 IPv6 prefixes. By IPv4 address space that makes it the 2,930th-largest of the 79,523 networks we see originating IPv4, and the 22nd-largest of 446 in Singapore. It is seen behind 5 upstream networks, most often AS3491 (PCCW Global (HK) Ltd.) and AS17984 (PCCW Global (HK) Ltd.). 92% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 72% of its routes reach at least 90% of full-feed peers, and 79 prefixes are also originated by another network.

At a glance

IPv4 prefixes

265

IPv6 prefixes

5

IPv4 addresses

74.2k

IPv6 /64s

524k

Upstream graph

The networks AS134963 is seen behind, one and two hops out, drawn from real AS paths.

AS134963Toward the internet core
Upstream graph for AS134963: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS134963Alibaba Cloud (Si…This networkAS3491PCCW Global (HK) …AS7713PT Telkom Indones…AS13335Cloudflare, Inc.AS17984PCCW Global (HK) …AS23764China Telecom Glo…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS35280F5 Networks SARLAS3356Lumen (Level 3)AS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS23673Cogetel Online, C…

Networks observed one and two hops upstream of AS134963 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

12

adjacent networks

Upstreams
542%
Peers
758%
Downstreams
00%

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

Upstreams of AS134963
NetworkCountryRelationshipPathsVantage pts
AS3491PCCW Global (HK) Ltd.HKPeer10,571144
AS17984PCCW Global (HK) Ltd.HKPeer8,11356
AS13335Cloudflare, Inc.USPeer40668
AS23764China Telecom GlobalHKPeer77
AS7713PT Telkom Indonesia TbkIDPeer31

Prefixes

All 270

The largest blocks AS134963 originates, widest first.

Largest prefixes originated by AS134963
PrefixAddressesVisibility
170.33.24.0/212k81/81
170.33.32.0/212k81/81
14.1.112.0/221k66/81
103.206.40.0/221k81/81
170.33.16.0/221k81/81
203.107.48.0/2351271/81
203.107.50.0/2351271/81
8.208.136.0/2425681/81
8.208.137.0/2425681/81
8.208.138.0/2425681/81

Routing health

How AS134963'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

  • Valid92.2%249
  • Invalid0.0%0
  • No ROA7.8%21

Propagation

  • Globally propagated90% of full-feed peers or more71.9%194
  • Partially propagated40% to 90%18.1%49
  • Seen by few peersUnder 40%10.0%27

Prefix sizes

IPv4 — 265 prefixes

IPv6 — 5 prefixes

  • /46262k × /6420.0%1
  • /4865.5k × /6480.0%4

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced103.173.12.0/2422nd Sept 2026
  • Withdrawn103.173.12.0/2422nd Sept 2026
  • Withdrawn103.173.13.0/2422nd Sept 2026
  • Announced103.173.13.0/2422nd Sept 2026
  • Announced205.198.40.0/2422nd Sept 2026
  • Withdrawn205.198.40.0/2422nd Sept 2026
  • Announced205.198.41.0/2422nd Sept 2026
  • Withdrawn205.198.41.0/2422nd Sept 2026
  • Withdrawn205.198.44.0/2422nd Sept 2026
  • Announced205.198.44.0/2422nd Sept 2026
  • Announced209.146.119.0/2422nd Sept 2026
  • Withdrawn209.146.119.0/2422nd Sept 2026

28 announced and 62 withdrawn in all; the most recent are shown.

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