asn.dev

Observed topology

AS8866 VIVACOM-AS Vivacom Bulgaria EAD

Residential RIPE NSP

Upstreams 41 carry this network
Downstreams 112 this network carries
Adjacent (IPv4) 152
Adjacent (IPv6) 26
Upstream graph Who carries AS8866, and who carries them, drawn as a map up to the transit-free core. 7 exchanges Where AS8866 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 41

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 IPv610,707
AS6939Hurricane Electric LLCTransitIPv4 IPv69,148
AS3356Level 3 Parent, LLCTransitIPv4 IPv68,611
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv66,790
AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. BeogradResidentialIPv4 IPv63,876
AS44901Belcloud LTDHostingIPv43,348
AS9002RETN LimitedUnclassifiedIPv4 IPv63,212
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,189
AS24482SG.GSHostingIPv4 IPv61,180
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv61,179

All 41 upstreams →

Transit

Downstream networks

All 112

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.MobileIPv46,519
AS29084Comnet Bulgaria Holding Ltd.ResidentialIPv4733
AS21415Vivacom Bulgaria EADUnclassifiedIPv4610
AS34754Vivacom Bulgaria EADUnclassifiedIPv4496
AS42431BiConsult EoodUnclassifiedIPv4449
AS8795Vivacom Bulgaria EADUnclassifiedIPv4369
AS39401Link+ LtdUnclassifiedIPv4315
AS51859Mainstream doo BeogradUnclassifiedIPv4305
AS13236DATACOM LTDUnclassifiedIPv4298
AS34569Vivacom Bulgaria EADResidentialIPv4248

All 112 downstreams →

Adjacency

Adjacent networks

All 155

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

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv613,394
AS6939Hurricane Electric LLCTransitIPv4 IPv610,769
AS3356Level 3 Parent, LLCTransitIPv4 IPv610,656
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv68,982
AS34295Geo BG Net SPLtd.MobileIPv47,342
AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. BeogradResidentialIPv4 IPv65,449
AS44901Belcloud LTDHostingIPv44,855
AS9002RETN LimitedUnclassifiedIPv4 IPv63,678
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,831
AS213241TECHIT.BE SRLResidentialIPv4 IPv61,556

All 155 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.