asn.dev

Observed topology

AS19527 GOOGLE-2

Unclassified ARIN

Upstreams 19 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 19
Adjacent (IPv6) 16
Upstream graph Who carries AS19527, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS19527 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 19

Networks observed carrying traffic for AS19527: 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 IPv61,459
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6869
AS6939Hurricane Electric LLCTransitIPv4 IPv6651
AS55410Vodafone Idea LtdMobileIPv4 IPv6651
AS174Cogent Communications, LLCTransitIPv4 IPv6539
AS1680Cellcom Fixed Line Communication L.PMobileIPv4 IPv6442
AS3356Level 3 Parent, LLCTransitIPv4 IPv6438
AS55836Reliance Jio Infocomm LimitedMobileIPv4 IPv6315
AS9002RETN LimitedUnclassifiedIPv4 IPv6273
AS37662West Indian Ocean Cable CompanyUnclassifiedIPv4 IPv6269

All 19 upstreams →

Transit

Downstream networks

inferred

Networks for which AS19527 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS396982Google LLCUnclassifiedIPv444

Adjacency

Adjacent networks

All 20

Every AS seen directly next to AS19527 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv61,459
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6869
AS6939Hurricane Electric LLCTransitIPv4 IPv6679
AS55410Vodafone Idea LtdMobileIPv4 IPv6651
AS174Cogent Communications, LLCTransitIPv4 IPv6539
AS1680Cellcom Fixed Line Communication L.PMobileIPv4 IPv6442
AS3356Level 3 Parent, LLCTransitIPv4 IPv6442
AS55836Reliance Jio Infocomm LimitedMobileIPv4 IPv6315
AS9002RETN LimitedUnclassifiedIPv4 IPv6281
AS37662West Indian Ocean Cable CompanyUnclassifiedIPv4 IPv6269

All 20 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.