asn.dev

Observed topology

AS266240 AS266240 - A2 TELECOM EIRELI - ME

Unclassified APNIC Cable/DSL/ISP

Upstreams 4 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 20
Adjacent (IPv6) 12
Upstream graph Who carries AS266240, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS266240 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS266240: 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
AS61568ALOO TELECOM - FSF TECNOLOGIA SAResidentialIPv4 IPv6112
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.AResidentialIPv499
AS3356Level 3 Parent, LLCTransitIPv4 IPv610
AS24482SG.GSHostingIPv4 IPv64

Transit

Downstream networks

All 15

Networks for which AS266240 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS266626Litoral TelecomUnclassifiedIPv4 IPv6339
AS263413ADRENALINA NET LTDAUnclassifiedIPv4167
AS265340S.M.C Redes e Informatica LTDAUnclassifiedIPv4 IPv6133
AS268384AJC TELECOMUnclassifiedIPv4 IPv6132
AS273366Laikos TelecomResidentialIPv4 IPv697
AS267628CLOVIS DA SILVA ALBUQUERQUE INTERNET - MEUnclassifiedIPv4 IPv693
AS269510LEAO VASCONCELOS INFORMATICA LTDA MEUnclassifiedIPv4 IPv692
AS263267VIUNET PROVIMENTO DE ACESSO A INTERNET LTDA - MEUnclassifiedIPv468
AS61849RIO ONLINE. NET LTDAUnclassifiedIPv461
AS269604JNETCOM TELECOMUnclassifiedIPv461

All 15 downstreams →

Adjacency

Adjacent networks

All 20

Every AS seen directly next to AS266240 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS61568ALOO TELECOM - FSF TECNOLOGIA SAResidentialIPv4 IPv6963
AS3356Level 3 Parent, LLCTransitIPv4 IPv6469
AS266626Litoral TelecomUnclassifiedIPv4 IPv6461
AS28126BRISANET SERVICOS DE TELECOMUNICACOES S.AResidentialIPv4272
AS269429LUCIANA P. DA SILVA-INFORMATICA-MEUnclassifiedIPv4 IPv6226
AS263413ADRENALINA NET LTDAUnclassifiedIPv4181
AS6939Hurricane Electric LLCTransitIPv4 IPv6179
AS265340S.M.C Redes e Informatica LTDAUnclassifiedIPv4 IPv6133
AS268384AJC TELECOMUnclassifiedIPv4 IPv6132
AS273366Laikos TelecomResidentialIPv4 IPv697

All 20 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-03 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.45M 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.