asn.dev

Observed topology

AS8866 VIVACOM-AS BULGARIA

Residential RIPE NSP

Upstreams 39 carry this network
Downstreams 110 this network carries
Adjacent (IPv4) 152
Adjacent (IPv6) 29
Upstream graph Who carries AS8866, and who carries them, drawn as a map up to the transit-free core. 8 exchanges Where AS8866 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 39

Networks observed carrying traffic for AS8866: 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
AS1299Arelion Sweden ABTransitIPv4 IPv610,818
AS3356Level 3 Parent, LLCTransitIPv49,693
AS6939Hurricane Electric LLCTransitIPv4 IPv69,391
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv65,526
AS9002RETN LimitedUnclassifiedIPv4 IPv64,235
AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. BeogradResidentialIPv4 IPv63,857
AS44901Belcloud LTDHostingIPv43,394
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv63,218
AS24482SG.GSHostingIPv4 IPv61,188
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv61,187

All 39 upstreams →

Transit

Downstream networks

All 110

Networks for which AS8866 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS34295Geo BG Net SPLtd.MobileIPv46,425
AS39401Link+ LtdUnclassifiedIPv4749
AS29084Comnet Bulgaria Holding Ltd.ResidentialIPv4686
AS21415Vivacom Bulgaria EADUnclassifiedIPv4610
AS34754Vivacom Bulgaria EADUnclassifiedIPv4488
AS8795Vivacom Bulgaria EADUnclassifiedIPv4366
AS51859Mainstream doo BeogradUnclassifiedIPv4305
AS13236DATACOM LTDUnclassifiedIPv4298
AS34569Vivacom Bulgaria EADResidentialIPv4244
AS43561Vivacom Bulgaria EADUnclassifiedIPv4 IPv6222

All 110 downstreams →

Adjacency

Adjacent networks

All 157

Every AS seen directly next to AS8866 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv613,384
AS3356Level 3 Parent, LLCTransitIPv411,930
AS6939Hurricane Electric LLCTransitIPv4 IPv610,980
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv67,526
AS34295Geo BG Net SPLtd.MobileIPv47,235
AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. BeogradResidentialIPv4 IPv65,358
AS9002RETN LimitedUnclassifiedIPv4 IPv64,934
AS44901Belcloud LTDHostingIPv4 IPv64,831
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv63,949
AS50673Serverius Holding B.V.UnclassifiedIPv4 IPv61,627

All 157 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.