asn.dev

Observed topology

AS11830 AS11830 - Instituto Costarricense de Electricidad y Telecom.

Residential APNIC

Upstreams 5 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 16
Adjacent (IPv6) 9
Upstream graph Who carries AS11830, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS11830 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS11830: 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 IPv638,626
AS1299Arelion Sweden ABTransitIPv4 IPv637,050
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv633,248
AS32270LD Telecommunications, Inc.HostingIPv4246
AS52468UFINET PANAMA S.A.UnclassifiedIPv457

Transit

Downstream networks

All 13

Networks for which AS11830 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS263683Universidad de Costa RicaUnclassifiedIPv4 IPv62,109
AS271891UNIVERSIDAD ESTATAL A DISTANCIAUnclassifiedIPv6278
AS52342Critical Colocation, S.A.HostingIPv4 IPv6172
AS52408Itech Soluciones S.AUnclassifiedIPv4153
AS264609TECOMUNICA NICARAGUAUnclassifiedIPv4 IPv6149
AS3790RADIOGRAFICA COSTARRICENSEUnclassifiedIPv499
AS61479Dole Shared Services LimitedUnclassifiedIPv458
AS262152Banco de Costa RicaUnclassifiedIPv458
AS263713Server Lodge S.A.UnclassifiedIPv454
AS395299THE WESTERN UNION COMPANYUnclassifiedIPv451

All 13 downstreams →

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS11830 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv638,871
AS1299Arelion Sweden ABTransitIPv4 IPv638,604
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv634,864
AS263683Universidad de Costa RicaUnclassifiedIPv4 IPv62,109
AS271891UNIVERSIDAD ESTATAL A DISTANCIAUnclassifiedIPv6278
AS32270LD Telecommunications, Inc.HostingIPv4246
AS264609TECOMUNICA NICARAGUAUnclassifiedIPv4 IPv6202
AS52342Critical Colocation, S.A.HostingIPv4 IPv6172
AS3790RADIOGRAFICA COSTARRICENSEUnclassifiedIPv4 IPv6156
AS52408Itech Soluciones S.AUnclassifiedIPv4153

All 18 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.