asn.dev

Observed topology

AS61323 UKFAST

Hosting RIPE Content

Upstreams 24 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 26
Adjacent (IPv6) 15
Upstream graph Who carries AS61323, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS61323 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 24

Networks observed carrying traffic for AS61323: 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
AS6461Zayo BandwidthTransitIPv4 IPv6920
AS174Cogent Communications, LLCTransitIPv4 IPv6905
AS6939Hurricane Electric LLCTransitIPv4 IPv6658
AS3257GTT Communications Inc.TransitIPv4 IPv6320
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6181
AS50304Blix Solutions ASUnclassifiedIPv4116
AS24482SG.GSHostingIPv4 IPv665
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv664
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv663
AS48185team.blue NVUnclassifiedIPv4 IPv663

All 24 upstreams →

Transit

Downstream networks

inferred

Networks for which AS61323 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS49229ANS Group LimitedUnclassifiedIPv4708
AS47583Hostinger International LimitedHostingIPv4 IPv6592
AS201493ALVARIA TECHNOLOGIES UK LIMITEDUnclassifiedIPv454
AS34934ANS ACADEMY LIMITEDHostingIPv42
AS208180Bluecube Cyber Security Solutions LimitedUnclassifiedIPv41

Adjacency

Adjacent networks

All 29

Every AS seen directly next to AS61323 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv61,204
AS174Cogent Communications, LLCTransitIPv4 IPv61,087
AS6939Hurricane Electric LLCTransitIPv4 IPv6938
AS49229ANS Group LimitedUnclassifiedIPv4708
AS47583Hostinger International LimitedHostingIPv4 IPv6592
AS3257GTT Communications Inc.TransitIPv4 IPv6482
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6220
AS12552GlobalConnect ABUnclassifiedIPv4154
AS37100SEACOM LimitedUnclassifiedIPv4154
AS3741Dimension DataUnclassifiedIPv4153

All 29 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-28 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.21M 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.