asn.dev

Observed topology

AS8560 IONOS-AS This is the joint network for IONOS, Fasthosts, Arsys, 1&1 Mail and Media and 1&1 Telecom. Formerly known as 1&1 Internet SE.

Hosting RIPE

Upstreams 38 carry this network
Downstreams 9 this network carries
Adjacent (IPv4) 46
Adjacent (IPv6) 33
Upstream graph Who carries AS8560, and who carries them, drawn as a map up to the transit-free core. 15 exchanges Where AS8560 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 38

Networks observed carrying traffic for AS8560: 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
AS1299Arelion Sweden ABTransitIPv4 IPv65,828
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,622
AS6939Hurricane Electric LLCTransitIPv4 IPv63,405
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv62,935
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,124
AS9002RETN LimitedUnclassifiedIPv4 IPv61,408
AS24482SG.GSHostingIPv4 IPv6541
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6541
AS33891Core-Backbone GmbHHostingIPv4536
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6480

All 38 upstreams →

Transit

Downstream networks

inferred

Networks for which AS8560 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS12824home.pl sp. z o.o.HostingIPv4 IPv61,250
AS6724Strato GmbHHostingIPv4 IPv6676
AS6786Cronon GmbHHostingIPv4 IPv6568
AS15456InterNetX GmbHHostingIPv4 IPv6394
AS202108united-domains GmbHUnclassifiedIPv4240
AS47846SEDO GmbHUnclassifiedIPv4 IPv6154
AS202113plan b. solutions GmbHUnclassifiedIPv4 IPv6140
AS15418Fasthosts Internet LimitedHostingIPv4 IPv684
AS213525Motion Applied LimitedUnclassifiedIPv460

Adjacency

Adjacent networks

All 50

Every AS seen directly next to AS8560 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv66,305
AS1299Arelion Sweden ABTransitIPv4 IPv66,297
AS6939Hurricane Electric LLCTransitIPv4 IPv63,894
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv63,116
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,336
AS9002RETN LimitedUnclassifiedIPv4 IPv61,586
AS12824home.pl sp. z o.o.HostingIPv4 IPv61,383
AS6724Strato GmbHHostingIPv4 IPv6770
AS24482SG.GSHostingIPv4 IPv6618
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6618

All 50 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.25M 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.