asn.dev

Observed topology

AS21472 SERVERHOUSE

Hosting RIPE

Upstreams 20 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 28
Adjacent (IPv6) 17
Upstream graph Who carries AS21472, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS21472 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 20

Networks observed carrying traffic for AS21472: 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 IPv6168
AS3356Level 3 Parent, LLCTransitIPv4154
AS6939Hurricane Electric LLCTransitIPv4 IPv6114
AS215162Trooli Ltd.UnclassifiedIPv4 IPv664
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv634
AS50304Blix Solutions ASUnclassifiedIPv422
AS24482SG.GSHostingIPv4 IPv612
AS48185team.blue NVUnclassifiedIPv4 IPv612
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv612
AS3216PJSC "Vimpelcom"MobileIPv411

All 20 upstreams →

Transit

Downstream networks

All 13

Networks for which AS21472 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS205804Delta V Technologies LimitedUnclassifiedIPv4 IPv6462
AS43924IQUO LIMITEDUnclassifiedIPv4174
AS215162Trooli Ltd.UnclassifiedIPv4 IPv698
AS12041Afilias, Inc.HostingIPv4 IPv666
AS212469ServerHouse LtdUnclassifiedIPv458
AS210258Wildanet LtdResidentialIPv627
AS48460ServerHouse LtdUnclassifiedIPv424
AS16276OVH SASHostingIPv43
AS13208Newtel LimitedUnclassifiedIPv42
AS13213THG HOSTING LIMITEDHostingIPv4 IPv62

All 13 downstreams →

Adjacency

Adjacent networks

All 34

Every AS seen directly next to AS21472 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS205804Delta V Technologies LimitedUnclassifiedIPv4 IPv6462
AS6939Hurricane Electric LLCTransitIPv4 IPv6384
AS215162Trooli Ltd.UnclassifiedIPv4 IPv6318
AS3356Level 3 Parent, LLCTransitIPv4306
AS174Cogent Communications, LLCTransitIPv4 IPv6301
AS43924IQUO LIMITEDUnclassifiedIPv4174
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv675
AS12041Afilias, Inc.HostingIPv4 IPv666
AS212469ServerHouse LtdUnclassifiedIPv458
AS50304Blix Solutions ASUnclassifiedIPv444

All 34 adjacent →

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.