Observed topology

AS210220 ICTFUTURE

Unclassified RIPE

Upstreams 3 carry this network

Downstreams 5 this network carries

Adjacent (IPv4) 6

Adjacent (IPv6) 4

Upstream graph Who carries AS210220, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS210220 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS210220: 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.

AS	Network	Type	Families	Paths seen
AS12741	Netia SA	Residential	IPv4 IPv6	396
AS12912	T-Mobile Polska S.A.	Unclassified	IPv4 IPv6	24
AS3356	Level 3 Parent, LLC	Transit	IPv6	8

Transit

Downstream networks

inferred

Networks for which AS210220 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS209619	4 Military Clinical Hospital with Polyclinic Independent Public Health Care Facility in Wroclaw	Unclassified	IPv4	54
AS197494	Polskie Radio-Regionalna Rozglosnia we Wroclawiu-Radio Wroclaw-Spolka Akcyjna	Unclassified	IPv4	42
AS57295	Marcin Wlodarczak	Unclassified	IPv6	19
AS199845	INVENT Sp. z o.o.	Unclassified	IPv4	6
AS31106	Wroclawski Park Technologiczny S.A.	Unclassified	IPv4	1

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS210220 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS12741	Netia SA	Residential	IPv4 IPv6	506
AS209619	4 Military Clinical Hospital with Polyclinic Independent Public Health Care Facility in Wroclaw	Unclassified	IPv4	54
AS197494	Polskie Radio-Regionalna Rozglosnia we Wroclawiu-Radio Wroclaw-Spolka Akcyjna	Unclassified	IPv4	42
AS12912	T-Mobile Polska S.A.	Unclassified	IPv4 IPv6	36
AS57295	Marcin Wlodarczak	Unclassified	IPv6	19
AS3356	Level 3 Parent, LLC	Transit	IPv6	8
AS199845	INVENT Sp. z o.o.	Unclassified	IPv4	6
AS31106	Wroclawski Park Technologiczny S.A.	Unclassified	IPv4	1

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-20 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.16M 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.