asn.dev

Observed topology

AS6802 UNICOM-B-AS Bulgarian Research and Education Network Association (BREN)

Education ARIN

Upstreams 10 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 8
Upstream graph Who carries AS6802, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS6802 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS6802: 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
AS8262Evolink EADUnclassifiedIPv4 IPv61,886
AS21320GEANT VerenigingUnclassifiedIPv4 IPv6811
AS6939Hurricane Electric LLCTransitIPv4368
AS3303Swisscom (Schweiz) AGResidentialIPv496
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv449
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv449
AS8717A1 Bulgaria EADResidentialIPv437
AS8866Vivacom Bulgaria EADResidentialIPv432
AS20965GEANT VerenigingUnclassifiedIPv4 IPv621
AS8218Zayo Infrastructure France SAUnclassifiedIPv46

Transit

Downstream networks

inferred

Networks for which AS6802 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS5421Sofia University "St. Kliment Ohridski"EducationIPv4 IPv6292
AS28949Technical University of SofiaUnclassifiedIPv4231
AS31011University of Chemical Technology And MetallurgyUnclassifiedIPv464
AS8745Bulgarian Academy of SciencesEducationIPv4 IPv651
AS48155University of Ruse "Angel Kanchev"UnclassifiedIPv4 IPv650
AS41352D. A. Tsenov Svishtov Academy of EconomicsUnclassifiedIPv4 IPv627
AS49704BULGARIA - DZZDUnclassifiedIPv4 IPv614
AS47174Technical University of VarnaUnclassifiedIPv412

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS6802 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS8262Evolink EADUnclassifiedIPv4 IPv62,163
AS21320GEANT VerenigingUnclassifiedIPv4 IPv61,050
AS6939Hurricane Electric LLCTransitIPv4425
AS5421Sofia University "St. Kliment Ohridski"EducationIPv4 IPv6292
AS28949Technical University of SofiaUnclassifiedIPv4231
AS20965GEANT VerenigingUnclassifiedIPv4 IPv6161
AS3303Swisscom (Schweiz) AGResidentialIPv4106
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv465
AS31011University of Chemical Technology And MetallurgyUnclassifiedIPv464
AS8745Bulgarian Academy of SciencesEducationIPv4 IPv651

All 18 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.