asn.dev

Observed topology

AS20771 CAUCASUS-CABLE-SYSTEM Caucasus Online Ltd.

Unclassified RIPE

Upstreams 4 carry this network
Downstreams 35 this network carries
Adjacent (IPv4) 42
Adjacent (IPv6) 8
Upstream graph Who carries AS20771, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS20771 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS20771: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv6546
AS174Cogent Communications, LLCTransitIPv4 IPv6309
AS47872Sofia Connect EADUnclassifiedIPv4259
AS196925Azertelecom LLCUnclassifiedIPv438

Transit

Downstream networks

All 35

Networks for which AS20771 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS41738Cellfie Mobile LLCUnclassifiedIPv41,947
AS49628LLC SkytelUnclassifiedIPv4 IPv61,575
AS35805JSC "Silknet"UnclassifiedIPv41,416
AS21214Geonet Ltd.UnclassifiedIPv4 IPv61,036
AS34666JSC "Global Erty"UnclassifiedIPv4887
AS41877Railway Telecom, LtdUnclassifiedIPv4522
AS203136LLC OrdunetResidentialIPv4 IPv6429
AS208320AIRMAX LLCUnclassifiedIPv4259
AS24997Caucasus Digital Network LTDHostingIPv4232
AS208744UGT LLCUnclassifiedIPv4229

All 35 downstreams →

Adjacency

Adjacent networks

All 42

Every AS seen directly next to AS20771 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv66,091
AS47872Sofia Connect EADUnclassifiedIPv43,501
AS174Cogent Communications, LLCTransitIPv4 IPv62,768
AS41738Cellfie Mobile LLCUnclassifiedIPv41,947
AS49628LLC SkytelUnclassifiedIPv4 IPv61,660
AS35805JSC "Silknet"UnclassifiedIPv41,416
AS21214Geonet Ltd.UnclassifiedIPv4 IPv61,036
AS34666JSC "Global Erty"UnclassifiedIPv4887
AS6461Zayo BandwidthTransitIPv4 IPv6868
AS215348Gnet LLCUnclassifiedIPv4737

All 42 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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