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AS8641LLC "Nauka-Svyaz"

RussiaRegistryRIPE NCCTypeEyeball

As of 27th September 2026, AS8641 (LLC "Nauka-Svyaz"), an access network registered in Russia with RIPE NCC, originates 60 IPv4 prefixes covering 43.5k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 4,715th-largest of the 79,525 networks we see originating IPv4, and the 185th-largest of 4,942 in Russia. It is seen behind 41 upstream networks, most often AS12389 (Rostelecom PJSC) and AS9002 (RETN Limited), and in front of 125 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

60

IPv6 prefixes

1

IPv4 addresses

43.5k

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…AS3216Vimpelcom PJSCAS3491PCCW Global (HK) …AS9002RETN LimitedAS12389Rostelecom PJSCAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…AS6453TATA Communicatio…AS51907Kanton ZugAS6939Hurricane Electri…

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

443

adjacent networks

Upstreams
419%
Peers
27763%
Downstreams
12528%

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
AS12389Rostelecom PJSCRUPeer10,10864
AS9002RETN LimitedGBPeer6,99158
AS3491PCCW Global (HK) Ltd.HKPeer4,20126
AS1299Arelion (fka. Telia Carrier)SEPeer2,21131
AS3216Vimpelcom PJSCRUPeer2,02235
AS7713PT Telkom Indonesia TbkIDPeer9183
AS210756EdgeCenter LLCRUPeer80381
AS57304RETN RussiaRUPeer74523
AS59692IQWeb FZ-LLCAEPeer55880
AS20764CJSC RASCOMRUPeer42519

Prefixes

All 61

The largest blocks AS8641 originates, widest first.

Largest prefixes originated by AS8641
PrefixAddressesVisibility
77.94.160.0/198.2k81/81
77.73.24.0/212k81/81
81.26.144.0/212k81/81
85.91.96.0/212k81/81
213.208.160.0/212k81/81
213.208.176.0/212k81/81
81.26.152.0/221k81/81
84.47.140.0/221k81/81
84.47.156.0/221k81/81
84.47.168.0/221k81/81

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%61
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%61
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 60 prefixes

IPv6 — 1 prefixes

  • /2934.4B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS8641 started or stopped in this period.

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