Observed topology

AS197889 MICROSYSTEM

Residential RIPE

Upstreams 7 carry this network

Downstreams 3 this network carries

Adjacent (IPv4) 10

Adjacent (IPv6) 3

Upstream graph Who carries AS197889, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS197889 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS197889: 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
AS41206	United Telecom Zartkoruen Mukodo Reszvenytarsasag	Unclassified	IPv4 IPv6	448
AS12301	One Hungary Ltd.	Unclassified	IPv4 IPv6	373
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	217
AS39679	JZT Informatikai Kft.	Hosting	IPv4	19
AS29657	Last-Mile Ltd.	Residential	IPv4	12
AS8447	A1 Telekom Austria AG	Residential	IPv4	6
AS33891	Core-Backbone GmbH	Hosting	IPv4	4

Transit

Downstream networks

inferred

Networks for which AS197889 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS211326	Incom Technologies Kft.	Unclassified	IPv4	118
AS15985	Pipenet Informatics and Securities Bt.	Unclassified	IPv4	59
AS207349	Opennetworks Kft.	Unclassified	IPv4	15

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS197889 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS41206	United Telecom Zartkoruen Mukodo Reszvenytarsasag	Unclassified	IPv4 IPv6	571
AS12301	One Hungary Ltd.	Unclassified	IPv4 IPv6	416
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	239
AS211326	Incom Technologies Kft.	Unclassified	IPv4	118
AS15985	Pipenet Informatics and Securities Bt.	Unclassified	IPv4	59
AS39679	JZT Informatikai Kft.	Hosting	IPv4	19
AS207349	Opennetworks Kft.	Unclassified	IPv4	15
AS29657	Last-Mile Ltd.	Residential	IPv4	12
AS33891	Core-Backbone GmbH	Hosting	IPv4	8
AS8447	A1 Telekom Austria AG	Residential	IPv4	6

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 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.