asn.dev

Observed topology

AS8717 A1BG A1 Bulgaria EAD

Residential RIPE NSP

Upstreams 26 carry this network
Downstreams 173 this network carries
Adjacent (IPv4) 203
Adjacent (IPv6) 39
Upstream graph Who carries AS8717, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS8717 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 26

Networks observed carrying traffic for AS8717: 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 IPv61,814
AS6461Zayo BandwidthTransitIPv4 IPv6824
AS1299Arelion Sweden ABTransitIPv4 IPv6815
AS6939Hurricane Electric LLCTransitIPv4 IPv6738
AS9002RETN LimitedUnclassifiedIPv4 IPv6493
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6215
AS8447A1 Telekom Austria AGResidentialIPv4146
AS3303Swisscom (Schweiz) AGResidentialIPv4103
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv693
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv684

All 26 upstreams →

Transit

Downstream networks

All 173

Networks for which AS8717 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS29580A1 Bulgaria EADMobileIPv4 IPv637,957
AS13124A1 Bulgaria EADUnclassifiedIPv4 IPv629,110
AS35141A1 Bulgaria EADUnclassifiedIPv421,909
AS12716A1 Bulgaria EADUnclassifiedIPv4 IPv63,327
AS39401Link+ LtdUnclassifiedIPv41,100
AS42794Ultracom Ltd.UnclassifiedIPv4 IPv61,059
AS28949Technical University of SofiaUnclassifiedIPv4806
AS59484SiS Net 05 EOODUnclassifiedIPv4549
AS48917Optinet LtdUnclassifiedIPv4548
AS202209Erma Consulting Ltd.UnclassifiedIPv4426

All 173 downstreams →

Adjacency

Adjacent networks

All 207

Every AS seen directly next to AS8717 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS29580A1 Bulgaria EADMobileIPv4 IPv637,957
AS13124A1 Bulgaria EADUnclassifiedIPv4 IPv629,110
AS6461Zayo BandwidthTransitIPv4 IPv623,044
AS3356Level 3 Parent, LLCTransitIPv4 IPv622,891
AS35141A1 Bulgaria EADUnclassifiedIPv421,909
AS1299Arelion Sweden ABTransitIPv4 IPv621,628
AS6939Hurricane Electric LLCTransitIPv4 IPv615,467
AS9002RETN LimitedUnclassifiedIPv4 IPv610,175
AS12716A1 Bulgaria EADUnclassifiedIPv4 IPv63,327
AS8447A1 Telekom Austria AGResidentialIPv4 IPv62,895

All 207 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-02 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.44M 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.