Observed topology

AS25133 MCLAUT-AS

Residential RIPE

Upstreams 15 carry this network

Downstreams 1 this network carries

Adjacent (IPv4) 16

Adjacent (IPv6) 1

Upstream graph Who carries AS25133, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS25133 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 15

Networks observed carrying traffic for AS25133: 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
AS6939	Hurricane Electric LLC	Transit	IPv4	1,848
AS9002	RETN Limited	Unclassified	IPv4	398
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	132
AS3333	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)	Unclassified	IPv4	44
AS20485	Joint Stock Company TransTeleCom	Unclassified	IPv4	44
AS24482	SG.GS	Hosting	IPv4	44
AS37721	Virtual Technologies & Solutions	Residential	IPv4	44
AS48185	team.blue NV	Unclassified	IPv4	44
AS48362	Stadtwerke Feldkirch	Residential	IPv4	44
AS50263	A-Systems Sp. z o.o.	Unclassified	IPv4	44

All 15 upstreams →

Transit

Downstream networks

inferred

Networks for which AS25133 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS44664	TOV company M-Tel	Unclassified	IPv4	814

Adjacency

Adjacent networks

All 17

Every AS seen directly next to AS25133 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS6939	Hurricane Electric LLC	Transit	IPv4	2,447
AS44664	TOV company M-Tel	Unclassified	IPv4	814
AS9002	RETN Limited	Unclassified	IPv4	482
AS34549	meerfarbig GmbH & Co. KG	Hosting	IPv4	165
AS50263	A-Systems Sp. z o.o.	Unclassified	IPv4	59
AS20485	Joint Stock Company TransTeleCom	Unclassified	IPv4	55
AS212024	Marc Schmitt	Unclassified	IPv4	55
AS3333	Reseaux IP Europeens Network Coordination Centre (RIPE NCC)	Unclassified	IPv4	54
AS37721	Virtual Technologies & Solutions	Residential	IPv4	54
AS50300	CustodianDC Limited	Unclassified	IPv4	54

All 17 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-18 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.