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AS numbers

AS9255 Singapore Telecom

AS9255 is operated by Singapore Telecom and registered with APNIC (SG) since 2000-06-02.

It announces 40 IPv4 and 51 IPv6 prefixes, 80% of them RPKI valid.

RIPE RIS sees 1 upstream and peer networks and 36 downstream networks next to it.

Run the full network report BGP lookup WHOIS PeeringDB lookup
NameSingapore Telecom
Registry handleCONNECTPLUS-AS
Registry (RIR)APNIC
CountrySingapore (SG)
Delegated on2000-06-02
Prefixes (IPv4 / IPv6)40 / 51
RPKI valid80% (73 / 91)
Upstreams and peers1
Downstream networks36

Routing health

  • AS9255 announces 40 IPv4 and 51 IPv6 prefixes.
  • 73 of 91 announced prefixes are RPKI valid.
  • 18 announced prefixes are not covered by a ROA of AS9255 (they may have none, or another network’s).
  • One upstream or peer seen (AS3758): an outage there takes the whole network off the internet.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 91

  • 103.102.235.0/24
  • 103.108.252.0/24
  • 118.201.12.0/22
  • 118.201.16.0/20
  • 118.201.81.0/24
  • 122.200.28.0/24
  • 128.106.8.0/24
  • 128.106.9.0/24
  • 128.106.84.0/22
  • 128.106.156.0/23
  • 138.103.32.0/22
  • 143.223.80.0/24
  • 143.223.81.0/24
  • 144.46.124.0/24
  • 144.46.125.0/24
  • 151.192.0.0/21
  • 151.192.8.0/21
  • 151.192.16.0/21
  • 151.192.24.0/21
  • 151.192.32.0/21
  • 151.192.48.0/24
  • 157.234.216.0/24
  • 158.155.250.0/24
  • 180.255.29.0/24
  • 185.82.163.0/24
  • 194.124.188.0/24
  • 203.125.128.0/24
  • 203.126.8.0/24
  • 203.126.130.0/24
  • 203.126.133.0/24
  • 203.126.134.0/24
  • 203.126.147.0/24
  • 203.127.3.0/24
  • 203.127.10.0/24
  • 203.127.31.0/24
  • 203.127.104.0/24
  • 203.127.181.0/24
  • 203.127.201.0/24
  • 203.127.202.0/24
  • 206.221.40.0/24
  • 2001:c20:48a0::/48
  • 2001:c20:48a6::/48
  • 2001:c20:48ae::/48
  • 2001:c20:48af::/48
  • 2001:c20:48b0::/48
  • 2001:c20:48b8::/48
  • 2001:c20:48c2::/48
  • 2001:c20:48c4::/48
  • 2001:c20:48c6::/48
  • 2001:c20:48cc::/48
  • 2001:c20:48da::/48
  • 2001:c20:48db::/48
  • 2001:c20:48dc::/48
  • 2001:c20:48e6::/48
  • 2001:c20:48e7::/48
  • 2001:c20:48e9::/48
  • 2001:c20:48ea::/48
  • 2001:c20:48f0::/48
  • 2001:c20:485e::/48
  • 2001:c20:485f::/48
  • 2001:c20:486c::/48
  • 2001:c20:487e::/48
  • 2001:c20:488c::/48
  • 2001:c20:488d::/48
  • 2001:c20:488f::/48
  • 2001:c20:489a::/48
  • 2001:c20:4849::/48
  • 2001:c20:4871::/48
  • 2001:c20:4874::/48
  • 2001:c20:4884::/48
  • 2001:c20:4887::/48
  • 2001:c20:4892::/48
  • 2001:c20:4894::/48
  • 2001:c20:4895::/48
  • 2001:c20:c81a::/48
  • 2001:c20:c81d::/48
  • 2001:c20:c83f::/48
  • 2001:c20:c84e::/48
  • 2001:c20:c816::/48
  • 2001:c20:c819::/48
  • 2001:c20:c824::/48
  • 2001:c20:c825::/48
  • 2001:c20:c826::/48
  • 2001:c20:c827::/48
  • 2001:c20:c831::/48
  • 2001:c20:c835::/48
  • 2001:c20:c839::/48
  • 2001:c20:c844::/48
  • 2001:c20:c847::/48
  • 2001:c20:c856::/48
  • 2001:df0:30f::/48

Upstreams and peers 1

The networks RIPE RIS sees next to AS9255 in BGP paths, the most visible first.

More about AS9255

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 08:06 UTC. The country is where the AS number was registered, not necessarily where the network operates.