subnet.im

AS9506Singtel Fibre Broadband

SingaporeRegistryAPNICTypeEyeball

As of 10th November 2026, AS9506 (Singtel Fibre Broadband), an access network registered in Singapore with APNIC, originates 81 IPv4 prefixes covering 1.5M addresses and 291 IPv6 prefixes. By IPv4 address space that makes it the 367th-largest of the 80,733 networks we see originating IPv4, and the largest of 450 in Singapore. It is seen behind 1 upstream network, most often AS3758 (SingNet), and in front of 1 downstream network. 99% of its announcements have a valid RPKI ROA; 5 are RPKI-invalid. 97% of its routes reach at least 90% of full-feed peers, and 4 prefixes are also originated by another network.

At a glance

IPv4 prefixes

81

IPv6 prefixes

291

IPv4 addresses

1.5M

IPv6 /64s

40B

Upstream graph

The networks AS9506 is seen behind, one and two hops out, drawn from real AS paths.

AS9506Toward the internet core
Upstream graph for AS9506: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS9506Singtel Fibre Bro…This networkAS3758SingNetAS6453TATA Communicatio…AS7473Singapore Telecom…

Networks observed one and two hops upstream of AS9506 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

4

adjacent networks

Upstreams
125%
Peers
250%
Downstreams
125%

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

Upstreams of AS9506
NetworkCountryRelationshipPathsVantage pts
AS3758SingNetSGPeer25,491139

Prefixes

All 372

The largest blocks AS9506 originates, widest first.

Largest prefixes originated by AS9506
PrefixAddressesVisibility
116.14.0.0/15131k76/76
42.60.0.0/1665.5k76/76
115.66.0.0/1665.5k76/76
116.14.0.0/1665.5k76/76
116.15.0.0/1665.5k76/76
118.200.0.0/1665.5k76/76
119.74.0.0/1665.5k76/76
121.6.0.0/1665.5k76/76
121.7.0.0/1665.5k76/76
219.74.0.0/1665.5k76/76

Routing health

How AS9506'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

  • Valid98.7%367
  • Invalid1.3%5
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more96.5%359
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%3.5%13

Prefix sizes

IPv4 — 81 prefixes

IPv6 — 291 prefixes

  • /3017.2B × /640.3%1
  • /318.6B × /640.3%1
  • /324.3B × /641.0%3
  • /4016.8M × /640.7%2
  • /418.4M × /6448.1%140
  • /441M × /6448.8%142
  • /4865.5k × /640.7%2

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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