subnet.im

AS10122NETSTAR (SG) PTE. LTD.

SingaporeRegistryAPNIC

As of 27th September 2026, AS10122 (NETSTAR (SG) PTE. LTD.), a network registered in Singapore with APNIC, originates 248 IPv4 prefixes covering 63.5k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 4,033rd-largest of the 79,523 networks we see originating IPv4, and the 32nd-largest of 446 in Singapore. It is seen behind 70 upstream networks, most often AS3257 (GTT Communications Inc.) and AS174 (Cogent Communications, LLC), and in front of 17 downstream networks. 90% of its announcements have a valid RPKI ROA; 22 are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers, and 22 prefixes are also originated by another network.

At a glance

IPv4 prefixes

248

IPv6 prefixes

6

IPv4 addresses

63.5k

IPv6 /64s

4.3B

Upstream graph

The networks AS10122 is seen behind, one and two hops out, drawn from real AS paths.

AS10122Toward the internet core
Upstream graph for AS10122: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS10122NETSTAR (SG) PTE.…This networkAS174Cogent Communicat…AS3257GTT Communication…AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS9002RETN LimitedAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6667Elisa OyjAS398465Rackdog LLCAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS8220COLT

Networks observed one and two hops upstream of AS10122 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

359

adjacent networks

Upstreams
7019%
Peers
27276%
Downstreams
175%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 70.

Upstreams of AS10122
NetworkCountryRelationshipPathsVantage pts
AS3257GTT Communications Inc.USPeer12,21268
AS174Cogent Communications, LLCUSPeer6,29783
AS3491PCCW Global (HK) Ltd.HKPeer5,38754
AS6453TATA Communications (America) IncUSPeer5,27953
AS9002RETN LimitedGBPeer2,48585
AS3216Vimpelcom PJSCRUPeer1,95367
AS1299Arelion (fka. Telia Carrier)SEPeer1,77681
AS7713PT Telkom Indonesia TbkIDPeer1,4573
AS7473Singapore Telecommunications LtdSGPeer1,26767
AS6939Hurricane Electric LLCUSPeer1,2286

Prefixes

All 254

The largest blocks AS10122 originates, widest first.

Largest prefixes originated by AS10122
PrefixAddressesVisibility
45.124.252.0/2425681/81
45.249.44.0/2425681/81
45.249.45.0/2425681/81
45.249.46.0/2425681/81
45.249.47.0/2425681/81
77.67.32.0/242561/81
78.138.49.0/2425681/81
84.75.84.0/242561/81
89.30.139.0/242561/81
92.112.229.0/242561/81

Routing health

How AS10122'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

  • Valid89.8%228
  • Invalid8.7%22
  • No ROA1.6%4

Propagation

  • Globally propagated90% of full-feed peers or more90.9%231
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%9.1%23

Prefix sizes

IPv4 — 248 prefixes

IPv6 — 6 prefixes

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

Recent changes

Announcements that started or stopped since 28th Aug 2026.

26 announced and 6 withdrawn in all; the most recent are shown.

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