asn.dev

Observed topology

AS10310 YAHOO-1

Hosting ARIN

Upstreams 66 carry this network
Downstreams 31 this network carries
Adjacent (IPv4) 92
Adjacent (IPv6) 70
Upstream graph Who carries AS10310, and who carries them, drawn as a map up to the transit-free core. 83 exchanges Where AS10310 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 66

Networks observed carrying traffic for AS10310: 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
AS3491PCCW Global HK Ltd.TransitIPv4 IPv6975
AS6939Hurricane Electric LLCTransitIPv4 IPv6816
AS4637Telstra GlobalUnclassifiedIPv4 IPv6535
AS3356Level 3 Parent, LLCTransitIPv4 IPv6385
AS1299Arelion Sweden ABTransitIPv4 IPv6339
AS7195S.A.SUnclassifiedIPv4 IPv6237
AS3462Data Communication Business GroupResidentialIPv4 IPv6146
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6135
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6123
AS9002RETN LimitedUnclassifiedIPv4 IPv6113

All 66 upstreams →

Transit

Downstream networks

All 31

Networks for which AS10310 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS26101Yahoo Holdings Inc.UnclassifiedIPv4 IPv64,804
AS36647Yahoo Holdings Inc.UnclassifiedIPv4 IPv64,298
AS34010Yahoo-UK LimitedUnclassifiedIPv4 IPv62,990
AS36646Yahoo Holdings Inc.UnclassifiedIPv4 IPv62,668
AS56173internet content providerUnclassifiedIPv4 IPv61,668
AS7280Yahoo Holdings Inc.UnclassifiedIPv4 IPv6872
AS10880Yahoo Holdings Inc.HostingIPv4 IPv6579
AS14778Yahoo Holdings Inc.UnclassifiedIPv4 IPv6578
AS14777Yahoo Holdings Inc.UnclassifiedIPv4 IPv6335
AS36088Yahoo Holdings Inc.UnclassifiedIPv4 IPv6335

All 31 downstreams →

Adjacency

Adjacent networks

All 99

Every AS seen directly next to AS10310 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS26101Yahoo Holdings Inc.UnclassifiedIPv4 IPv64,804
AS36647Yahoo Holdings Inc.UnclassifiedIPv4 IPv64,298
AS6939Hurricane Electric LLCTransitIPv4 IPv63,664
AS34010Yahoo-UK LimitedUnclassifiedIPv4 IPv62,990
AS36646Yahoo Holdings Inc.UnclassifiedIPv4 IPv62,668
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,377
AS3491PCCW Global HK Ltd.TransitIPv4 IPv62,003
AS1299Arelion Sweden ABTransitIPv4 IPv61,928
AS56173internet content providerUnclassifiedIPv4 IPv61,668
AS4637Telstra GlobalUnclassifiedIPv4 IPv61,309

All 99 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-27 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.06M 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.