asn.dev

Observed topology

AS5466 EIRCOM Eircom Limited

Mobile ARIN

Upstreams 26 carry this network
Downstreams 14 this network carries
Adjacent (IPv4) 43
Adjacent (IPv6) 20
Upstream graph Who carries AS5466, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS5466 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 26

Networks observed carrying traffic for AS5466: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6452
AS6939Hurricane Electric LLCTransitIPv4 IPv6222
AS174Cogent Communications, LLCTransitIPv4 IPv6218
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv676
AS6758Monaco Telecom S.A.ResidentialIPv457
AS50304Blix Solutions ASUnclassifiedIPv4 IPv654
AS9002RETN LimitedUnclassifiedIPv4 IPv628
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv627
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv627
AS24482SG.GSHostingIPv4 IPv627

All 26 upstreams →

Transit

Downstream networks

All 14

Networks for which AS5466 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS24675Irish GovernmentUnclassifiedIPv4650
AS15751Eircom LimitedUnclassifiedIPv4 IPv6437
AS48970Natus Manufacturing LimitedUnclassifiedIPv4200
AS39730Eircom (UK) LtdUnclassifiedIPv4 IPv6143
AS205080Societe Internationale de Telecommunications AeronautiquesUnclassifiedIPv4 IPv691
AS43484Siemens Industry Software LimitedUnclassifiedIPv475
AS35299C2kUnclassifiedIPv459
AS41973Vhi Healthcare DACUnclassifiedIPv458
AS203011OSG CLOUD LIMITEDUnclassifiedIPv457
AS51516Fexco Unlimited CompanyUnclassifiedIPv450

All 14 downstreams →

Adjacency

Adjacent networks

All 45

Every AS seen directly next to AS5466 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv61,044
AS24675Irish GovernmentUnclassifiedIPv4650
AS6939Hurricane Electric LLCTransitIPv4 IPv6477
AS15751Eircom LimitedUnclassifiedIPv4 IPv6437
AS174Cogent Communications, LLCTransitIPv4 IPv6421
AS48970Natus Manufacturing LimitedUnclassifiedIPv4200
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6198
AS39730Eircom (UK) LtdUnclassifiedIPv4 IPv6143
AS50304Blix Solutions ASUnclassifiedIPv4 IPv6137
AS205080Societe Internationale de Telecommunications AeronautiquesUnclassifiedIPv4 IPv691

All 45 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.