subnet.im

AS7473Singapore Telecommunications Ltd

SingaporeRegistryAPNICTypeCarrier

As of 26th September 2026, AS7473 (Singapore Telecommunications Ltd), a transit carrier registered in Singapore with APNIC, originates 46 IPv4 prefixes covering 95.7k addresses and 44 IPv6 prefixes. By IPv4 address space that makes it the 2,470th-largest of the 79,480 networks we see originating IPv4, and the 14th-largest of 446 in Singapore. It is seen behind 33 upstream networks, most often AS6461 (Zayo Bandwidth) and AS6939 (Hurricane Electric LLC), and in front of 205 downstream networks. 54% of its announcements have a valid RPKI ROA; 36 are RPKI-invalid. 57% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

46

IPv6 prefixes

44

IPv4 addresses

95.7k

IPv6 /64s

4.3B

Upstream graph

The networks AS7473 is seen behind, one and two hops out, drawn from real AS paths.

AS7473Toward the internet core
Upstream graph for AS7473: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7473Singapore Telecom…This networkAS1299Arelion (fka. Tel…AS6453TATA Communicatio…AS6461Zayo BandwidthAS6939Hurricane Electri…AS9002RETN LimitedAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS8220COLTAS2914NTT America, Inc.AS32590Valve CorporationAS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS7473 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

486

adjacent networks

Upstreams
337%
Peers
24851%
Downstreams
20542%

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

Upstreams of AS7473
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer165,755115
AS6939Hurricane Electric LLCUSPeer35,62567
AS1299Arelion (fka. Telia Carrier)SEPeer32,09597
AS6453TATA Communications (America) IncUSPeer15,87992
AS9002RETN LimitedGBPeer15,57281
AS7713PT Telkom Indonesia TbkIDPeer10,8447
AS32590Valve CorporationUSPeer9,2012
AS2914NTT America, Inc.USPeer8,02017
AS7474SingTel Optus Pty LtdAUPeer7,0933
AS8966Etisalat (E&)AEPeer5,72615

Prefixes

All 90

The largest blocks AS7473 originates, widest first.

Largest prefixes originated by AS7473
PrefixAddressesVisibility
203.208.128.0/1732.8k81/81
117.18.32.0/198.2k81/81
202.160.224.0/198.2k81/81
202.165.128.0/198.2k60/81
203.208.128.0/198.2k81/81
203.208.160.0/198.2k81/81
203.208.192.0/198.2k81/81
202.189.136.0/212k81/81
202.189.128.0/221k81/81
202.189.132.0/221k81/81

Routing health

How AS7473'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

  • Valid54.4%49
  • Invalid40.0%36
  • No ROA5.6%5

Propagation

  • Globally propagated90% of full-feed peers or more56.7%51
  • Partially propagated40% to 90%2.2%2
  • Seen by few peersUnder 40%41.1%37

Prefix sizes

IPv4 — 46 prefixes

IPv6 — 44 prefixes

  • /324.3B × /642.3%1
  • /4865.5k × /6418.2%8
  • /49 and longerAggregated79.5%35

Recent changes

Announcements that started or stopped since 27th Aug 2026.

  • Withdrawn2001:c10:80:2::efc/12621st Sept 2026

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