asn.dev

Observed topology

AS37619 BSC-AS

Unclassified AFRINIC

Upstreams 5 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 16
Adjacent (IPv6) 5
Upstream graph Who carries AS37619, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS37619 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS37619: 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
AS33765TANZANIA TELECOMMUNICATIONS CO. LTDResidentialIPv4 IPv6231
AS37100SEACOM LimitedUnclassifiedIPv4162
AS14593Space Exploration Technologies CorporationResidentialIPv4 IPv673
AS37273Bandwidth and Cloud Services Group LtdResidentialIPv435
AS30844Liquid Telecommunications LtdUnclassifiedIPv614

Transit

Downstream networks

inferred

Networks for which AS37619 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS37228KT RWANDA NETWORK LtdUnclassifiedIPv44,141
AS37654Rwanda Ministry of EducationUnclassifiedIPv4524
AS203905GEWAPE CLOUD (K) LIMITEDUnclassifiedIPv4 IPv6221
AS327899Broadband Systems CorporationUnclassifiedIPv4122
AS37010National University of RwandaUnclassifiedIPv467
AS328385Rwanda Revenue Authority (RRA)UnclassifiedIPv467
AS329755ENERGY UTILITY CORPORATION (EUCL) LtdUnclassifiedIPv435
AS328014Rwanda Internet Exchange Point (RINEX) c/o RICTAUnclassifiedIPv46

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS37619 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS37228KT RWANDA NETWORK LtdUnclassifiedIPv44,239
AS14593Space Exploration Technologies CorporationResidentialIPv4 IPv62,162
AS37100SEACOM LimitedUnclassifiedIPv41,869
AS37273Bandwidth and Cloud Services Group LtdResidentialIPv41,130
AS37654Rwanda Ministry of EducationUnclassifiedIPv4539
AS33765TANZANIA TELECOMMUNICATIONS CO. LTDResidentialIPv4 IPv6348
AS327899Broadband Systems CorporationUnclassifiedIPv4 IPv6224
AS203905GEWAPE CLOUD (K) LIMITEDUnclassifiedIPv4 IPv6221
AS30844Liquid Telecommunications LtdUnclassifiedIPv4 IPv6192
AS36890MTN RwandacellUnclassifiedIPv4192

All 16 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M 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.