asn.dev

Observed topology

AS6821 MT-AS-OWN bul. Orce Nikolov bb

Residential RIPE

Upstreams 8 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 24
Adjacent (IPv6) 4
Upstream graph Who carries AS6821, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS6821 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS6821: 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 IPv62,148
AS9002RETN LimitedUnclassifiedIPv4 IPv61,430
AS3320Deutsche Telekom AGMobileIPv41,168
AS6939Hurricane Electric LLCTransitIPv4269
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv469
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv469
AS8218Zayo Infrastructure France SAUnclassifiedIPv437
AS5405Inter.link GmbHUnclassifiedIPv430

Transit

Downstream networks

All 15

Networks for which AS6821 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS41557Drustvo za telekomunikaciski uslugi TELEKABEL DOOEL StipUnclassifiedIPv41,913
AS199128PET NET DOO GevgelijaUnclassifiedIPv4649
AS8661Telekomi i Kosoves SH.A.UnclassifiedIPv4 IPv6512
AS209442FASTNET ALBANIA Sh.p.kUnclassifiedIPv4 IPv6326
AS61332ASEE Solutions d.o.o. BeogradUnclassifiedIPv4110
AS205623Adzibadem Sistina Skopje, Private Clinic HospitalUnclassifiedIPv460
AS57116Health Insurance Fund of MacedoniaUnclassifiedIPv459
AS199969ProCredit Bank AD SkopjeUnclassifiedIPv459
AS214632STOPANSKA BANKA AD SKOPJEUnclassifiedIPv459
AS198159HALKBANK AD SkopjeUnclassifiedIPv449

All 15 downstreams →

Adjacency

Adjacent networks

All 24

Every AS seen directly next to AS6821 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv65,214
AS9002RETN LimitedUnclassifiedIPv4 IPv62,553
AS41557Drustvo za telekomunikaciski uslugi TELEKABEL DOOEL StipUnclassifiedIPv42,182
AS3320Deutsche Telekom AGMobileIPv41,235
AS199128PET NET DOO GevgelijaUnclassifiedIPv4649
AS8661Telekomi i Kosoves SH.A.UnclassifiedIPv4 IPv6551
AS209442FASTNET ALBANIA Sh.p.kUnclassifiedIPv4 IPv6326
AS6939Hurricane Electric LLCTransitIPv4269
AS61332ASEE Solutions d.o.o. BeogradUnclassifiedIPv4110
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv469

All 24 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.