asn.dev

Observed topology

AS50477 SV-EN-AS

Upstreams 6 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 9
Adjacent (IPv6) 4

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS50477: 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
AS20764CJSC RASCOMUnclassifiedIPv4 IPv6584
AS31133PJSC MegaFonMobileIPv4 IPv6558
AS58067JOINT-STOCK COMPANY "MOSCOW ENERGY COMMUNICATION NODE"UnclassifiedIPv4 IPv6382
AS8359MTS PJSCMobileIPv4 IPv6295
AS60388JSC "Oil Transportation and Production Telecommunications"ResidentialIPv490
AS44507OJSC Kostroma Municipal Telephone NetworkUnclassifiedIPv48

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 AS50477 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS44507OJSC Kostroma Municipal Telephone NetworkUnclassifiedIPv4378
AS197298Multifunctional Telecommunications Systems LTDUnclassifiedIPv4152
AS205062LightPort LtdUnclassifiedIPv4130
AS42551TALTEL LLCUnclassifiedIPv424

Adjacency

Adjacent networks

14 shown

Every AS seen directly next to AS50477 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS20764CJSC RASCOMUnclassifiedIPv4 IPv61,500
AS31133PJSC MegaFonMobileIPv4 IPv6854
AS197298Multifunctional Telecommunications Systems LTDUnclassifiedIPv4834
AS58067JOINT-STOCK COMPANY "MOSCOW ENERGY COMMUNICATION NODE"UnclassifiedIPv4 IPv6482
AS44507OJSC Kostroma Municipal Telephone NetworkUnclassifiedIPv4386
AS8359MTS PJSCMobileIPv4 IPv6295
AS60388JSC "Oil Transportation and Production Telecommunications"ResidentialIPv4144
AS205062LightPort LtdUnclassifiedIPv4130
AS42551TALTEL LLCUnclassifiedIPv424

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 AS50477, 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.

No exchange membership on file. That is not the same as peering nowhere: the dataset records what PCH has collected, and many exchanges publish no participant list at all.

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 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 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.