asn.dev

Observed topology

AS21472 SERVERHOUSE

Hosting RIPE Cable/DSL/ISP

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.