asn.dev

Observed topology

AS39923 AS-UNIXSOLUTIONS Unix-Solutions Network

Hosting RIPE Content

Upstreams 22 carry this network
Downstreams 10 this network carries
Adjacent (IPv4) 31
Adjacent (IPv6) 19
Upstream graph Who carries AS39923, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS39923 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 22

Networks observed carrying traffic for AS39923: 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
AS8220COLT Technology Services Group LimitedHostingIPv4 IPv6699
AS2914NTT America, Inc.TransitIPv4 IPv6521
AS13237euNetworks GmbHUnclassifiedIPv4 IPv6498
AS6939Hurricane Electric LLCTransitIPv4 IPv6429
AS48185team.blue NVUnclassifiedIPv4 IPv643
AS45049Mohamed El BoudduntiResidentialIPv4 IPv642
AS3303Swisscom (Schweiz) AGResidentialIPv435
AS24482SG.GSHostingIPv4 IPv621
AS34019Hivane AssociationUnclassifiedIPv421
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv620

All 22 upstreams →

Transit

Downstream networks

inferred

Networks for which AS39923 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS208792Core ICT N.V.UnclassifiedIPv4170
AS200882DC Innovations BVHostingIPv4 IPv6155
AS39641WILLUX.be N.V.UnclassifiedIPv4118
AS210821Creasa VOFUnclassifiedIPv4 IPv692
AS204120Colibri Consulting B.V.B.A.UnclassifiedIPv4 IPv688
AS50906Luciad NVUnclassifiedIPv456
AS50156Boxed IT Ltd.HostingIPv4 IPv653
AS208725Devrandom.be BVHostingIPv4 IPv626
AS58123NG Communications BVUnclassifiedIPv4 IPv617
AS199670DNS-Belgium VZWUnclassifiedIPv4 IPv614

Adjacency

Adjacent networks

All 32

Every AS seen directly next to AS39923 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS8220COLT Technology Services Group LimitedHostingIPv4 IPv61,059
AS2914NTT America, Inc.TransitIPv4 IPv6800
AS6939Hurricane Electric LLCTransitIPv4 IPv6518
AS13237euNetworks GmbHUnclassifiedIPv4 IPv6498
AS208792Core ICT N.V.UnclassifiedIPv4170
AS200882DC Innovations BVHostingIPv4 IPv6155
AS50156Boxed IT Ltd.HostingIPv4 IPv6129
AS39641WILLUX.be N.V.UnclassifiedIPv4118
AS210821Creasa VOFUnclassifiedIPv4 IPv692
AS204120Colibri Consulting B.V.B.A.UnclassifiedIPv4 IPv688

All 32 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.