subnet.im

AS9123JSC "TIMEWEB"

RussiaRegistryRIPE NCC

As of 26th September 2026, AS9123 (JSC "TIMEWEB"), a network registered in Russia with RIPE NCC, originates 917 IPv4 prefixes covering 235k addresses and 28 IPv6 prefixes. By IPv4 address space that makes it the 1,176th-largest of the 79,480 networks we see originating IPv4, and the 33rd-largest of 4,941 in Russia. It is seen behind 35 upstream networks, most often AS9002 (RETN Limited) and AS12389 (Rostelecom PJSC), and in front of 10 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 3 prefixes are also originated by another network.

At a glance

IPv4 prefixes

917

IPv6 prefixes

28

IPv4 addresses

235k

IPv6 /64s

68.7B

Upstream graph

The networks AS9123 is seen behind, one and two hops out, drawn from real AS paths.

Networks observed one and two hops upstream of AS9123 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

220

adjacent networks

Upstreams
3516%
Peers
17580%
Downstreams
105%

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

Upstreams of AS9123
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer39,08665
AS12389Rostelecom PJSCRUPeer27,77163
AS57304RETN RussiaRUPeer10,34014
AS1299Arelion (fka. Telia Carrier)SEPeer9,96649
AS174Cogent Communications, LLCUSPeer4,27318
AS20764CJSC RASCOMRUPeer3,33018
AS59692IQWeb FZ-LLCAEPeer1,98580
AS6939Hurricane Electric LLCUSPeer1,78519
AS25091IP-Max SACHPeer1,6554
AS24940Hetzner Online GmbHDEPeer1,3062

Prefixes

All 945

The largest blocks AS9123 originates, widest first.

Largest prefixes originated by AS9123
PrefixAddressesVisibility
2.59.40.0/2425681/81
2.59.41.0/2425681/81
2.59.42.0/2425681/81
2.59.43.0/2425681/81
5.23.48.0/2425681/81
5.23.49.0/2425681/81
5.23.50.0/2425681/81
5.23.51.0/2425681/81
5.23.52.0/2425681/81
5.23.53.0/2425681/81

Routing health

How AS9123'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

  • Valid100.0%945
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more99.9%944
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.1%1

Prefix sizes

IPv4 — 917 prefixes

IPv6 — 28 prefixes

  • /2934.4B × /643.6%1
  • /324.3B × /6428.6%8
  • /4865.5k × /6467.9%19

Recent changes

Announcements that started or stopped since 27th Aug 2026.

38 announced and 22 withdrawn in all; the most recent are shown.

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