Observed topology

AS41108 FirstRoot-AS comtrance service GmbH

Hosting RIPE

Upstreams 1 carry this network

Downstreams 19 this network carries

Adjacent (IPv4) 9

Adjacent (IPv6) 15

Upstream graph Who carries AS41108, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS41108 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS41108: 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
AS30962	comtrance service GmbH	Hosting	IPv4 IPv6	936

Transit

Downstream networks

All 19

Networks for which AS41108 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS209859	Florian Martin Esser	Unclassified	IPv4 IPv6	112
AS207378	DIRK MUTTERLOSE	Unclassified	IPv4	60
AS209185	Tim Niemeyer	Unclassified	IPv6	46
AS199462	NETISP LTD	Unclassified	IPv6	32
AS200201	Tomasz Kepczynski	Unclassified	IPv6	32
AS207792	Darius Jockel	Unclassified	IPv6	32
AS208449	Micky Del Favero trading as "BeeCloudy.net"	Unclassified	IPv6	32
AS210887	Yannic Sack	Unclassified	IPv6	32
AS212704	Daniel Groeber	Unclassified	IPv6	32
AS215080	Jana Amelie Steuernagel	Unclassified	IPv6	32

All 19 downstreams →

Adjacency

Adjacent networks

All 20

Every AS seen directly next to AS41108 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS30962	comtrance service GmbH	Hosting	IPv4 IPv6	1,498
AS209859	Florian Martin Esser	Unclassified	IPv4 IPv6	112
AS207378	DIRK MUTTERLOSE	Unclassified	IPv4	60
AS209185	Tim Niemeyer	Unclassified	IPv6	46
AS199462	NETISP LTD	Unclassified	IPv6	32
AS200201	Tomasz Kepczynski	Unclassified	IPv6	32
AS207792	Darius Jockel	Unclassified	IPv6	32
AS208449	Micky Del Favero trading as "BeeCloudy.net"	Unclassified	IPv6	32
AS210887	Yannic Sack	Unclassified	IPv6	32
AS212704	Daniel Groeber	Unclassified	IPv6	32

All 20 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.