asn.dev

Observed topology

AS12200 RACKSPACE - Rackspace Hosting

Hosting ARIN

Upstreams 29 carry this network
Downstreams 18 this network carries
Adjacent (IPv4) 56
Adjacent (IPv6) 35
Upstream graph Who carries AS12200, and who carries them, drawn as a map up to the transit-free core. 14 exchanges Where AS12200 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 29

Networks observed carrying traffic for AS12200: 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 IPv6213
AS32787Akamai Technologies, Inc.HostingIPv4180
AS3356Level 3 Parent, LLCTransitIPv4 IPv6140
AS174Cogent Communications, LLCTransitIPv4 IPv691
AS6461Zayo BandwidthTransitIPv485
AS6939Hurricane Electric LLCTransitIPv4 IPv672
AS9002RETN LimitedUnclassifiedIPv416
AS24482SG.GSHostingIPv4 IPv68
AS293ESnetUnclassifiedIPv45
AS3303Swisscom (Schweiz) AGResidentialIPv45

All 29 upstreams →

Transit

Downstream networks

All 18

Networks for which AS12200 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS33070Rackspace HostingHostingIPv4 IPv66,034
AS22205DataPipe, Inc.UnclassifiedIPv4 IPv63,963
AS19994Rackspace HostingHostingIPv4 IPv63,887
AS27357Rackspace HostingHostingIPv4 IPv62,196
AS15395Rackspace Ltd.HostingIPv4 IPv62,006
AS14492DataPipe, Inc.HostingIPv4 IPv61,080
AS39921Rackspace Ltd.HostingIPv4 IPv6552
AS22576DataPipe, Inc.UnclassifiedIPv4472
AS16805DataPipe, Inc.UnclassifiedIPv4 IPv6444
AS46202Michaels Stores, Inc.UnclassifiedIPv4343

All 18 downstreams →

Adjacency

Adjacent networks

All 59

Every AS seen directly next to AS12200 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv67,808
AS33070Rackspace HostingHostingIPv4 IPv66,034
AS19994Rackspace HostingHostingIPv4 IPv65,155
AS3356Level 3 Parent, LLCTransitIPv4 IPv64,573
AS6461Zayo BandwidthTransitIPv4 IPv64,172
AS174Cogent Communications, LLCTransitIPv4 IPv64,044
AS22205DataPipe, Inc.UnclassifiedIPv4 IPv63,963
AS27357Rackspace HostingHostingIPv4 IPv63,180
AS6939Hurricane Electric LLCTransitIPv4 IPv63,164
AS15395Rackspace Ltd.HostingIPv4 IPv62,006

All 59 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.