subnet.im

AS9911Singapore Telecom

SingaporeRegistryAPNIC

As of 10th November 2026, AS9911 (Singapore Telecom), a network registered in Singapore with APNIC, originates 12 IPv4 prefixes covering 12.3k addresses. By IPv4 address space that makes it the 9,541st-largest of the 80,733 networks we see originating IPv4, and the 73rd-largest of 450 in Singapore. It is seen behind 1 upstream network, most often AS51847 (Nearoute Limited). 8% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

12

IPv6 prefixes

0

IPv4 addresses

12.3k

IPv6 /64s

0

Upstream graph

The networks AS9911 is seen behind, one and two hops out, drawn from real AS paths.

AS9911Toward the internet core
Upstream graph for AS9911: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9911Singapore TelecomThis networkAS51847Nearoute LimitedAS174Cogent Communicat…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS9911 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 AS9911
NetworkCountryRelationshipPathsVantage pts
AS51847Nearoute LimitedHKPeer90075

Prefixes

The largest blocks AS9911 originates, widest first.

Largest prefixes originated by AS9911
PrefixAddressesVisibility
101.192.76.0/221k75/76
101.192.80.0/221k75/76
101.193.84.0/221k75/76
101.193.88.0/221k75/76
101.193.92.0/221k75/76
103.114.72.0/221k75/76
117.120.200.0/221k75/76
117.120.204.0/221k75/76
117.120.240.0/221k75/76
117.120.244.0/221k75/76

Routing health

How AS9911'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

  • Valid8.3%1
  • Invalid0.0%0
  • No ROA91.7%11

Propagation

  • Globally propagated90% of full-feed peers or more100.0%12
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 12 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS9911 started or stopped in this period.

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