asn.dev

Observed topology

AS12741 AS-NETIA Warszawa 02-822

Residential RIPE NSP

Upstreams 37 carry this network
Downstreams 425 this network carries
Adjacent (IPv4) 462
Adjacent (IPv6) 65
Upstream graph Who carries AS12741, and who carries them, drawn as a map up to the transit-free core. 9 exchanges Where AS12741 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 37

Networks observed carrying traffic for AS12741: 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
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,121
AS174Cogent Communications, LLCTransitIPv4 IPv61,335
AS6939Hurricane Electric LLCTransitIPv4 IPv61,032
AS6461Zayo BandwidthTransitIPv4848
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6601
AS50304Blix Solutions ASUnclassifiedIPv4328
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv6204
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6168
AS24482SG.GSHostingIPv4 IPv6168
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv6168

All 37 upstreams →

Transit

Downstream networks

All 425

Networks for which AS12741 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS12887Netia SAUnclassifiedIPv42,497
AS39855Mod Mission Critical LLCHostingIPv41,692
AS48424GLOBITEL Sp. z o.o.UnclassifiedIPv4 IPv61,093
AS60713EXEA Sp. z o.o.UnclassifiedIPv4 IPv6730
AS30851Sileman Sp. z o.o.UnclassifiedIPv4695
AS31608Gawex Media Sp. z o. o.UnclassifiedIPv4663
AS41421StarNet Telecom Sp. z o.o.UnclassifiedIPv4662
AS41297Adam Dlugosz trading as ABAKSUnclassifiedIPv4567
AS28785Asseco Cloud Sp. z o. o.UnclassifiedIPv4 IPv6565
AS25070Comarch S.A.UnclassifiedIPv4542

All 425 downstreams →

Adjacency

Adjacent networks

All 462

Every AS seen directly next to AS12741 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv69,749
AS6461Zayo BandwidthTransitIPv47,595
AS174Cogent Communications, LLCTransitIPv4 IPv66,132
AS6939Hurricane Electric LLCTransitIPv4 IPv63,952
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv63,188
AS12887Netia SAUnclassifiedIPv42,973
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv62,809
AS50304Blix Solutions ASUnclassifiedIPv41,907
AS58321Oxylion Sp. z o.o.UnclassifiedIPv4 IPv61,694
AS39855Mod Mission Critical LLCHostingIPv41,692

All 462 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-15 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.09M 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.