asn.dev

Observed topology

AS47872 SOFIA-CONNECT-AS Sofia Connect EAD

Unclassified RIPE

Upstreams 9 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 23
Adjacent (IPv6) 9
Upstream graph Who carries AS47872, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS47872 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS47872: 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
AS6461Zayo BandwidthTransitIPv4 IPv6196
AS3356Level 3 Parent, LLCTransitIPv4 IPv6189
AS6939Hurricane Electric LLCTransitIPv4 IPv6110
AS174Cogent Communications, LLCTransitIPv4 IPv694
AS31287IPACCT CABLE LtdUnclassifiedIPv430
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv67
AS8551Bezeq International Ltd.UnclassifiedIPv47
AS31500Global Network Management IncUnclassifiedIPv41
AS37721Virtual Technologies & SolutionsResidentialIPv41

Transit

Downstream networks

All 12

Networks for which AS47872 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS51582Cifrova Kabelna Korporacia EOODResidentialIPv4 IPv6451
AS20771Caucasus Online Ltd.UnclassifiedIPv4258
AS60325Optiland Telecommunications I.K.E.UnclassifiedIPv4133
AS202634Petar PetrovUnclassifiedIPv4 IPv6122
AS42555OPTICCOM- BULGARIA Ltd.UnclassifiedIPv4101
AS209681Deltacom Electronics Ltd.UnclassifiedIPv4 IPv661
AS207094Inter Carrier LtdUnclassifiedIPv457
AS211128Sky Fiber ADUnclassifiedIPv457
AS204639H-Tech EOODUnclassifiedIPv446
AS212416Proximity EOODUnclassifiedIPv4 IPv626

All 12 downstreams →

Adjacency

Adjacent networks

All 23

Every AS seen directly next to AS47872 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv63,872
AS20771Caucasus Online Ltd.UnclassifiedIPv43,502
AS3356Level 3 Parent, LLCTransitIPv4 IPv6589
AS51582Cifrova Kabelna Korporacia EOODResidentialIPv4 IPv6451
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv6311
AS174Cogent Communications, LLCTransitIPv4 IPv6293
AS42555OPTICCOM- BULGARIA Ltd.UnclassifiedIPv4263
AS8551Bezeq International Ltd.UnclassifiedIPv4239
AS6939Hurricane Electric LLCTransitIPv4 IPv6154
AS60325Optiland Telecommunications I.K.E.UnclassifiedIPv4133

All 23 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.