asn.dev

Observed topology

AS5538 SIGMANET-NIC

Education RIPE

Upstreams 7 carry this network
Downstreams 10 this network carries
Adjacent (IPv4) 13
Adjacent (IPv6) 13
Upstream graph Who carries AS5538, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS5538 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS5538: 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
AS21320GEANT VerenigingUnclassifiedIPv4 IPv6119
AS174Cogent Communications, LLCTransitIPv4 IPv685
AS34073LR Izglitibas un zinatnes ministrijaUnclassifiedIPv4 IPv671
AS6939Hurricane Electric LLCTransitIPv4 IPv662
AS20965GEANT VerenigingUnclassifiedIPv4 IPv616
AS8194VAS "Latvijas Valsts radio un televizijas centrs"UnclassifiedIPv412
AS1257Tele2 Sverige ABMobileIPv4 IPv64

Transit

Downstream networks

inferred

Networks for which AS5538 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS199029World Registry of Internet Domains LTDUnclassifiedIPv4174
AS51955Institute of Mathematics and Computer Science of University of LatviaUnclassifiedIPv6159
AS29345Institute of Mathematics and Computer Science of University of LatviaUnclassifiedIPv4 IPv6153
AS199031SIA AmberbitUnclassifiedIPv458
AS8605University of LatviaEducationIPv4 IPv628
AS10906Nucleo de Inf. e Coord. do Ponto BR - NIC.BRUnclassifiedIPv4 IPv627
AS34073LR Izglitibas un zinatnes ministrijaUnclassifiedIPv4 IPv625
AS44358Kauno Technologijos UniversitetasUnclassifiedIPv4 IPv66
AS29067LLC "Hostmaster"HostingIPv63
AS25152Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv62

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS5538 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6341
AS174Cogent Communications, LLCTransitIPv4 IPv6287
AS34073LR Izglitibas un zinatnes ministrijaUnclassifiedIPv4 IPv6205
AS199029World Registry of Internet Domains LTDUnclassifiedIPv4174
AS20965GEANT VerenigingUnclassifiedIPv4 IPv6162
AS51955Institute of Mathematics and Computer Science of University of LatviaUnclassifiedIPv6159
AS29345Institute of Mathematics and Computer Science of University of LatviaUnclassifiedIPv4 IPv6153
AS21320GEANT VerenigingUnclassifiedIPv4 IPv6135
AS8194VAS "Latvijas Valsts radio un televizijas centrs"UnclassifiedIPv4104
AS199031SIA AmberbitUnclassifiedIPv458

All 16 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-19 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.