asn.dev

Observed topology

AS31042 SERBIA-BROADBAND-AS Serbia BroadBand-Srpske Kablovske mreze d.o.o.

Residential RIPE

Upstreams 18 carry this network
Downstreams 51 this network carries
Adjacent (IPv4) 74
Adjacent (IPv6) 13
Upstream graph Who carries AS31042, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS31042 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 18

Networks observed carrying traffic for AS31042: 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
AS15958CETIN Ltd. BelgradeUnclassifiedIPv4 IPv61,107
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv661
AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. BeogradResidentialIPv4 IPv653
AS24482SG.GSHostingIPv4 IPv621
AS34019Hivane AssociationUnclassifiedIPv4 IPv621
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv621
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv621
AS212024Marc SchmittUnclassifiedIPv4 IPv621
AS6939Hurricane Electric LLCTransitIPv620
AS6797GlobalConnect ABUnclassifiedIPv419

All 18 upstreams →

Transit

Downstream networks

All 51

Networks for which AS31042 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS52026TRUF d.o.o.UnclassifiedIPv42,520
AS57595Netlogic dooUnclassifiedIPv4720
AS203877ASTRA TELEKOM DOO BEOGRADUnclassifiedIPv4708
AS51002ASTRA TELEKOM DOO BEOGRADUnclassifiedIPv4540
AS200287BOBAN CAKIC trading as INTERNET SERVIS IBSUnclassifiedIPv4240
AS205620Unicom-Telecom d.o.o.UnclassifiedIPv4213
AS49167COMUTEL d.o.o.UnclassifiedIPv4180
AS62012Generali Osiguranje SrbijaUnclassifiedIPv4180
AS201047Meridian Tech d.o.o.UnclassifiedIPv4177
AS25337ALL IP DOOUnclassifiedIPv4120

All 51 downstreams →

Adjacency

Adjacent networks

All 77

Every AS seen directly next to AS31042 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS15958CETIN Ltd. BelgradeUnclassifiedIPv4 IPv66,929
AS52026TRUF d.o.o.UnclassifiedIPv42,520
AS203877ASTRA TELEKOM DOO BEOGRADUnclassifiedIPv4768
AS57595Netlogic dooUnclassifiedIPv4720
AS51002ASTRA TELEKOM DOO BEOGRADUnclassifiedIPv4540
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6487
AS12189PhoenixNAP LLCHostingIPv4271
AS200287BOBAN CAKIC trading as INTERNET SERVIS IBSUnclassifiedIPv4240
AS205620Unicom-Telecom d.o.o.UnclassifiedIPv4213
AS49167COMUTEL d.o.o.UnclassifiedIPv4180

All 77 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.