asn.dev

Observed topology

AS39545 FLUIDATA Fluidone Ltd.

Unclassified RIPE Cable/DSL/ISP

Upstreams 7 carry this network
Downstreams 7 this network carries
Adjacent (IPv4) 14
Adjacent (IPv6) 5
Upstream graph Who carries AS39545, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS39545 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS39545: 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
AS4455IX Reach LtdUnclassifiedIPv4 IPv6142
AS3257GTT Communications Inc.TransitIPv4134
AS6939Hurricane Electric LLCTransitIPv4 IPv645
AS31216BSO Network Solutions SASUnclassifiedIPv4 IPv636
AS39326Syntura Group LimitedHostingIPv4 IPv629
AS48185team.blue NVUnclassifiedIPv4 IPv66
AS37100SEACOM LimitedUnclassifiedIPv45

Transit

Downstream networks

inferred

Networks for which AS39545 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS21077Specialist Computer Centres PlcUnclassifiedIPv4671
AS50910Mainstream Digital LtdUnclassifiedIPv4660
AS205917Fluidone Ltd.UnclassifiedIPv4289
AS204239Abzorb Group LtdUnclassifiedIPv4240
AS210310Daisy Communications LtdUnclassifiedIPv4120
AS209329FOCUS 4 U LTDUnclassifiedIPv460
AS598164on LTDUnclassifiedIPv458

Adjacency

Adjacent networks

All 14

Every AS seen directly next to AS39545 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS4455IX Reach LtdUnclassifiedIPv4 IPv6993
AS21077Specialist Computer Centres PlcUnclassifiedIPv4671
AS50910Mainstream Digital LtdUnclassifiedIPv4660
AS3257GTT Communications Inc.TransitIPv4627
AS6939Hurricane Electric LLCTransitIPv4 IPv6344
AS205917Fluidone Ltd.UnclassifiedIPv4289
AS31216BSO Network Solutions SASUnclassifiedIPv4 IPv6241
AS204239Abzorb Group LtdUnclassifiedIPv4240
AS39326Syntura Group LimitedHostingIPv4 IPv6203
AS210310Daisy Communications LtdUnclassifiedIPv4120

All 14 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.