subnet.im

AS7474SingTel Optus Pty Ltd

AustraliaRegistryAPNICTypeCarrier

As of 10th November 2026, AS7474 (SingTel Optus Pty Ltd), a transit carrier registered in Australia with APNIC, originates 158 IPv4 prefixes covering 564k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 667th-largest of the 80,723 networks we see originating IPv4, and the 11th-largest of 1,696 in Australia. It is seen behind 9 upstream networks, most often AS7473 (Singapore Telecommunications Ltd) and AS3257 (GTT Communications Inc.), and in front of 187 downstream networks. 52% of its announcements have a valid RPKI ROA; 6 are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers, and 7 prefixes are also originated by another network.

At a glance

IPv4 prefixes

158

IPv6 prefixes

6

IPv4 addresses

564k

IPv6 /64s

4.3B

Upstream graph

The networks AS7474 is seen behind, one and two hops out, drawn from real AS paths.

AS7474Toward the internet core
Upstream graph for AS7474: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7474SingTel Optus Pty…This networkAS1221Telstra LimitedAS3257GTT Communication…AS3356Lumen (Level 3)AS7473Singapore Telecom…AS38880Micron21 Datacent…AS4637Telstra Internati…AS6667Elisa OyjAS398465Rackdog LLCAS2914NTT America, Inc.AS6461Zayo BandwidthAS6939Hurricane Electri…AS9002RETN Limited

Networks observed one and two hops upstream of AS7474 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

400

adjacent networks

Upstreams
92%
Peers
20451%
Downstreams
18747%

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

Upstreams of AS7474
NetworkCountryRelationshipPathsVantage pts
AS7473Singapore Telecommunications LtdSGPeer83,124133
AS3257GTT Communications Inc.USPeer35,657117
AS38880Micron21 Datacentre Pty LtdAUPeer1,2251
AS1221Telstra LimitedAUPeer1,1479
AS3356Lumen (Level 3)USPeer2794
AS7545TPG Telecom LimitedAUPeer857
AS17828PNG DATACO LTDPGPeer6546
AS2914NTT America, Inc.USPeer4519
AS38195SuperloopAUPeer21

Prefixes

All 164

The largest blocks AS7474 originates, widest first.

Largest prefixes originated by AS7474
PrefixAddressesVisibility
1.44.0.0/1665.5k75/76
59.154.0.0/1665.5k75/76
119.225.0.0/1665.5k75/76
61.88.0.0/1732.8k75/76
124.19.0.0/1732.8k75/76
125.63.128.0/1732.8k75/76
202.139.0.0/1732.8k75/76
203.202.0.0/1732.8k75/76
220.101.0.0/1732.8k75/76
61.88.128.0/1816.4k75/76

Routing health

How AS7474'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

  • Valid52.4%86
  • Invalid3.7%6
  • No ROA43.9%72

Propagation

  • Globally propagated90% of full-feed peers or more91.5%150
  • Partially propagated40% to 90%3.7%6
  • Seen by few peersUnder 40%4.9%8

Prefix sizes

IPv4 — 158 prefixes

IPv6 — 6 prefixes

  • /324.3B × /6416.7%1
  • /4865.5k × /6483.3%5

Recent changes

Announcements that started or stopped since 11th Oct 2026.

  • Withdrawn220.101.16.0/2416th Oct 2026

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