asn.dev

Observed topology

AS8323 CYFRONET-AS2 Metropolitan Area Network Autonomous System

Education RIPE Educational/Research

Upstreams 5 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 16
Adjacent (IPv6) 7
Upstream graph Who carries AS8323, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS8323 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS8323: 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
AS13293Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6135
AS196844Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6106
AS6939Hurricane Electric LLCTransitIPv4 IPv666
AS20804Exatel S.A.UnclassifiedIPv454
AS24748Atman Sp. z o.o.HostingIPv62

Transit

Downstream networks

All 12

Networks for which AS8323 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS16138Interia.pl Sp z.o.o.UnclassifiedIPv4135
AS57889MAXSERWIS Sp.zo.o.UnclassifiedIPv4116
AS12990Ringier Axel Springer Polska Sp. z o.o.HostingIPv4 IPv6104
AS8267Academic Computer Centre CYFRONET AGHEducationIPv4 IPv692
AS58350PHU Classcom Sp. z o.o.UnclassifiedIPv4 IPv689
AS29593WOJCIECH LOREK ENDOR COMPUTERSHostingIPv480
AS206687RESINVEST ENERGY POLSKA Sp. z o.o.UnclassifiedIPv447
AS28815Lerkins Group Sp. z o. o.UnclassifiedIPv442
AS197527Miejskie Przedsiebiorstwo Komunikacyjne SA w KrakowieUnclassifiedIPv423
AS203890Krakowski Park Technologiczny Sp ZOOUnclassifiedIPv46

All 12 downstreams →

Adjacency

Adjacent networks

All 17

Every AS seen directly next to AS8323 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS13293Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6490
AS196844Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking CenterUnclassifiedIPv4 IPv6392
AS6939Hurricane Electric LLCTransitIPv4 IPv6168
AS16138Interia.pl Sp z.o.o.UnclassifiedIPv4135
AS57889MAXSERWIS Sp.zo.o.UnclassifiedIPv4116
AS12990Ringier Axel Springer Polska Sp. z o.o.HostingIPv4 IPv6104
AS58350PHU Classcom Sp. z o.o.UnclassifiedIPv4 IPv695
AS8267Academic Computer Centre CYFRONET AGHEducationIPv4 IPv692
AS29593WOJCIECH LOREK ENDOR COMPUTERSHostingIPv480
AS20804Exatel S.A.UnclassifiedIPv454

All 17 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.