asn.dev

Observed topology

AS11830 Instituto Costarricense de Electricidad y Telecom.

Residential APNIC

Upstreams 5 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 18
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 IPv639,534
AS1299Arelion Sweden ABTransitIPv4 IPv636,946
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv633,957
AS32270LD Telecommunications, Inc.HostingIPv4242
AS52468UFINET PANAMA S.A.UnclassifiedIPv457

Transit

Downstream networks

All 15

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 IPv62,147
AS264609TECOMUNICA NICARAGUAUnclassifiedIPv4 IPv6325
AS271891UNIVERSIDAD ESTATAL A DISTANCIAUnclassifiedIPv6287
AS52342Critical Colocation, S.A.HostingIPv4 IPv6181
AS52408Itech Soluciones S.AUnclassifiedIPv4157
AS3790RADIOGRAFICA COSTARRICENSEUnclassifiedIPv499
AS262152Banco de Costa RicaUnclassifiedIPv460
AS61479Dole Shared Services LimitedUnclassifiedIPv456
AS263713Server Lodge S.A.UnclassifiedIPv454
AS395299THE WESTERN UNION COMPANYUnclassifiedIPv452

All 15 downstreams →

Adjacency

Adjacent networks

All 20

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

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv640,635
AS1299Arelion Sweden ABTransitIPv4 IPv639,325
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv635,906
AS263683Universidad de Costa RicaUnclassifiedIPv4 IPv62,147
AS264609TECOMUNICA NICARAGUAUnclassifiedIPv4 IPv62,144
AS271891UNIVERSIDAD ESTATAL A DISTANCIAUnclassifiedIPv6287
AS32270LD Telecommunications, Inc.HostingIPv4242
AS52342Critical Colocation, S.A.HostingIPv4 IPv6181
AS3790RADIOGRAFICA COSTARRICENSEUnclassifiedIPv4 IPv6157
AS52408Itech Soluciones S.AUnclassifiedIPv4157

All 20 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M 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.