asn.dev

Observed topology

AS16509 AMAZON-02

Hosting DROP-listed space ARIN Enterprise

Upstreams 104 carry this network
Downstreams 136 this network carries
Adjacent (IPv4) 196
Adjacent (IPv6) 130
Upstream graph Who carries AS16509, and who carries them, drawn as a map up to the transit-free core. 147 exchanges Where AS16509 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 104

Networks observed carrying traffic for AS16509: 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 IPv6269,715
AS174Cogent Communications, LLCTransitIPv4 IPv6198,416
AS2914NTT America, Inc.TransitIPv4 IPv6160,152
AS6939Hurricane Electric LLCTransitIPv4 IPv668,367
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv658,318
AS3257GTT Communications Inc.TransitIPv4 IPv643,328
AS24482SG.GSHostingIPv4 IPv633,238
AS9002RETN LimitedUnclassifiedIPv4 IPv630,755
AS3356Level 3 Parent, LLCTransitIPv4 IPv629,697
AS3320Deutsche Telekom AGMobileIPv4 IPv623,709

All 104 upstreams →

Transit

Downstream networks

All 136

Networks for which AS16509 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS14618Amazon.com, Inc.HostingIPv4 IPv6117,703
AS8987AmazonHostingIPv4 IPv612,366
AS801Amazon Technologies Inc.UnclassifiedIPv4 IPv611,063
AS14782MailChimpUnclassifiedIPv43,506
AS214101Amazon Data Services European Sovereign Cloud GmbHUnclassifiedIPv4 IPv63,389
AS16766Island Technology, Inc.UnclassifiedIPv4 IPv63,139
AS922GoCodeIT IncUnclassifiedIPv4 IPv62,875
AS8011MongoDB, Inc.UnclassifiedIPv42,642
AS401041Axis SecurityUnclassifiedIPv41,699
AS7224Amazon.com, Inc.HostingIPv41,675

All 136 downstreams →

Adjacency

Adjacent networks

All 243

Every AS seen directly next to AS16509 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv6294,498
AS174Cogent Communications, LLCTransitIPv4 IPv6223,280
AS2914NTT America, Inc.TransitIPv4 IPv6176,020
AS14618Amazon.com, Inc.HostingIPv4 IPv6122,847
AS6939Hurricane Electric LLCTransitIPv4 IPv676,743
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv661,938
AS3257GTT Communications Inc.TransitIPv4 IPv650,865
AS9002RETN LimitedUnclassifiedIPv4 IPv642,722
AS24482SG.GSHostingIPv4 IPv640,250
AS3356Level 3 Parent, LLCTransitIPv4 IPv634,662

All 243 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-31 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.50M 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.