asn.dev

Observed topology

AS61231 NEOS-NETWORKS

Unclassified RIPE NSP

Upstreams 21 carry this network
Downstreams 33 this network carries
Adjacent (IPv4) 54
Adjacent (IPv6) 22
Upstream graph Who carries AS61231, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS61231 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 21

Networks observed carrying traffic for AS61231: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6181
AS6939Hurricane Electric LLCTransitIPv4 IPv688
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv675
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv625
AS50304Blix Solutions ASUnclassifiedIPv416
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv69
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv69
AS48185team.blue NVUnclassifiedIPv4 IPv69
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv69
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv69

All 21 upstreams →

Transit

Downstream networks

All 33

Networks for which AS61231 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS211167IT Farm LimitedUnclassifiedIPv4190
AS25470Neos Networks LimitedUnclassifiedIPv4174
AS60593Network Rail Infrastructure LimitedUnclassifiedIPv4174
AS44314ITsynergy LimitedUnclassifiedIPv4 IPv6148
AS204562JAVELIN BROADBAND LIMITEDUnclassifiedIPv4 IPv6123
AS213646Monkey Tree Hosting LimitedUnclassifiedIPv4 IPv6122
AS202630Sequential Networks LimitedUnclassifiedIPv4116
AS203171Chi Technology LtdUnclassifiedIPv4116
AS401234Northeastern UniversityUnclassifiedIPv4103
AS211678Michaelston y Fedw Internet CICUnclassifiedIPv4 IPv698

All 33 downstreams →

Adjacency

Adjacent networks

All 57

Every AS seen directly next to AS61231 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS214073Heart Internet limitedUnclassifiedIPv43,068
AS174Cogent Communications, LLCTransitIPv4 IPv62,357
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,235
AS6939Hurricane Electric LLCTransitIPv4 IPv6977
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6349
AS211167IT Farm LimitedUnclassifiedIPv4190
AS38808NIGSUN LIMITED - IP SERVICESUnclassifiedIPv4 IPv6180
AS25470Neos Networks LimitedUnclassifiedIPv4174
AS60593Network Rail Infrastructure LimitedUnclassifiedIPv4174
AS44314ITsynergy LimitedUnclassifiedIPv4 IPv6148

All 57 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-23 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.15M 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.