subnet.im

AS8641LLC "Nauka-Svyaz"

RussiaRegistryRIPE NCCTypeEyeball

As of 11th November 2026, AS8641 (LLC "Nauka-Svyaz"), an access network registered in Russia with RIPE NCC, originates 61 IPv4 prefixes covering 44k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 4,755th-largest of the 80,743 networks we see originating IPv4, and the 187th-largest of 4,983 in Russia. It is seen behind 41 upstream networks, most often AS12389 (PJSC Rostelecom) and AS3491 (PCCW Global (HK) Ltd.), and in front of 126 downstream networks. Every one of its announcements has 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

61

IPv6 prefixes

1

IPv4 addresses

44k

IPv6 /64s

34.4B

Upstream graph

The networks AS8641 is seen behind, one and two hops out, drawn from real AS paths.

AS8641Toward the internet core
Upstream graph for AS8641: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS8641LLC "Nauka-Svyaz"This networkAS1299Arelion (fka. Tel…AS3216PJSC VimpelcomAS3491PCCW Global (HK) …AS12389PJSC RostelecomAS57304RETN RussiaAS1273Vodafone Group PLCAS3356Lumen (Level 3)AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS6939Hurricane Electri…AS9002RETN LimitedAS18106Viewqwest Pte Ltd

Networks observed one and two hops upstream of AS8641 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

445

adjacent networks

Upstreams
419%
Peers
27862%
Downstreams
12628%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 41.

Upstreams of AS8641
NetworkCountryRelationshipPathsVantage pts
AS12389PJSC RostelecomRUPeer5,58163
AS3491PCCW Global (HK) Ltd.HKPeer4,09625
AS3216PJSC VimpelcomRUPeer3,08037
AS57304RETN RussiaRUPeer2,95637
AS1299Arelion (fka. Telia Carrier)SEPeer2,68535
AS20764CJSC RASCOMRUPeer1,33639
AS20485JSC TransTeleComRUPeer1,10713
AS31133PJSC MegaFonRUPeer88937
AS7713PT Telkom Indonesia TbkIDPeer8173
AS210756EdgeCenter LLCRUPeer75776

Prefixes

All 62

The largest blocks AS8641 originates, widest first.

Largest prefixes originated by AS8641
PrefixAddressesVisibility
77.94.160.0/198.2k76/76
77.73.24.0/212k76/76
81.26.144.0/212k76/76
85.91.96.0/212k76/76
213.208.160.0/212k76/76
213.208.176.0/212k76/76
81.26.152.0/221k76/76
84.47.140.0/221k76/76
84.47.156.0/221k76/76
84.47.168.0/221k76/76

Routing health

How AS8641'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%62
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%62
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 61 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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