asn.dev

Observed topology

AS50923 METRO-SET-AS Metroset Autonomous System

Upstreams 20 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 28
Adjacent (IPv6) 10

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS50923: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS31500Global Network Management IncUnclassifiedIPv4 IPv670
AS28917Fiord Networks, UABUnclassifiedIPv4 IPv666
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4 IPv660
AS6939Hurricane Electric LLCTransitIPv440
AS1299Arelion Sweden ABTransitIPv4 IPv640
AS174Cogent Communications, LLCTransitIPv4 IPv631
AS3216PJSC "Vimpelcom"MobileIPv429
AS35598INETCOM CARRIER LLCUnclassifiedIPv414
AS9049JSC "ER-Telecom Holding"UnclassifiedIPv412
AS57463NetIX Communications JSCUnclassifiedIPv410
AS25091IP-Max SAUnclassifiedIPv410
AS56655Gigahost ASUnclassifiedIPv4 IPv66
AS24482SG.GSHostingIPv4 IPv66
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv45
AS49673Truenetwork LLCUnclassifiedIPv45
AS62255BiMajLink d.o.o.UnclassifiedIPv45
AS37721Virtual Technologies & SolutionsResidentialIPv45
AS50304Blix Solutions ASUnclassifiedIPv4 IPv65
AS3303Swisscom (Schweiz) AGResidentialIPv44
AS12552GlobalConnect ABUnclassifiedIPv44

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS50923 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS39735"Permtelecom" LtdUnclassifiedIPv4298
AS48873LLC "Proxicom"UnclassifiedIPv4285
AS204077Severnye volokonno-opticheskie sistemy Ltd.UnclassifiedIPv4185
AS44627Link LLCUnclassifiedIPv4124
AS15493"Russian company" LLCUnclassifiedIPv4 IPv6117
AS202136"A-Siti" Limited Liability CompanyUnclassifiedIPv4 IPv688
AS57363CDNvideo LLCHostingIPv462
AS207353Ruform LLCHostingIPv41

Adjacency

Adjacent networks

38 shown

Every AS seen directly next to AS50923 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS15493"Russian company" LLCUnclassifiedIPv4 IPv6451
AS28917Fiord Networks, UABUnclassifiedIPv4 IPv6410
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4 IPv6367
AS39735"Permtelecom" LtdUnclassifiedIPv4298
AS31500Global Network Management IncUnclassifiedIPv4 IPv6287
AS48873LLC "Proxicom"UnclassifiedIPv4285
AS204077Severnye volokonno-opticheskie sistemy Ltd.UnclassifiedIPv4185
AS6939Hurricane Electric LLCTransitIPv4145
AS1299Arelion Sweden ABTransitIPv4 IPv6143
AS44627Link LLCUnclassifiedIPv4124
AS174Cogent Communications, LLCTransitIPv4 IPv6124
AS202136"A-Siti" Limited Liability CompanyUnclassifiedIPv4 IPv688
AS35598INETCOM CARRIER LLCUnclassifiedIPv481
AS3216PJSC "Vimpelcom"MobileIPv475
AS57363CDNvideo LLCHostingIPv462
AS56655Gigahost ASUnclassifiedIPv4 IPv646
AS9049JSC "ER-Telecom Holding"UnclassifiedIPv439
AS50304Blix Solutions ASUnclassifiedIPv4 IPv638
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv428
AS12552GlobalConnect ABUnclassifiedIPv424
AS37721Virtual Technologies & SolutionsResidentialIPv421
AS49673Truenetwork LLCUnclassifiedIPv420
AS24482SG.GSHostingIPv4 IPv619
AS3303Swisscom (Schweiz) AGResidentialIPv417
AS62255BiMajLink d.o.o.UnclassifiedIPv417
AS25091IP-Max SAUnclassifiedIPv410
AS57463NetIX Communications JSCUnclassifiedIPv410
AS207353Ruform LLCHostingIPv41

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS50923, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 6 exchanges across 4 countries and 1 region.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.193.2051,073
AMS-IX AmsterdamAmsterdam, Netherlands80.249.208.86894
MSK-IX MoscowMoscow, Russia195.208.208.218498
MSK-IX NovosibirskNovosibirsk, Russia193.232.87.8559
MSK-IX EkaterinburgEkaterinburg, Russia194.85.107.4652
Netnod Sundsvall- GävleSundsvall, Sweden194.68.128.24318

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.