asn.dev

Observed topology

AS20940 AKAMAI-ASN1

Hosting RIPE

Upstreams 185 carry this network
Downstreams 14 this network carries
Adjacent (IPv4) 194
Adjacent (IPv6) 158
Upstream graph Who carries AS20940, and who carries them, drawn as a map up to the transit-free core. 217 exchanges Where AS20940 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 185

Networks observed carrying traffic for AS20940: 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
AS2914NTT America, Inc.TransitIPv4 IPv631,170
AS1299Arelion Sweden ABTransitIPv4 IPv628,440
AS174Cogent Communications, LLCTransitIPv4 IPv626,738
AS6939Hurricane Electric LLCTransitIPv4 IPv623,199
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv619,277
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv613,713
AS3356Level 3 Parent, LLCTransitIPv4 IPv612,006
AS3257GTT Communications Inc.TransitIPv4 IPv68,733
AS2516KDDI CORPORATIONMobileIPv4 IPv66,944
AS6461Zayo BandwidthTransitIPv4 IPv66,039

All 185 upstreams →

Transit

Downstream networks

All 14

Networks for which AS20940 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS16625Akamai Technologies, Inc.HostingIPv4103,629
AS36183Akamai Technologies, Inc.HostingIPv4 IPv682,588
AS35994Akamai Technologies, Inc.HostingIPv4 IPv621,152
AS63949Akamai Connected CloudHostingIPv4 IPv619,190
AS21342Akamai International B.V.HostingIPv4 IPv67,985
AS34164Akamai International B.V.HostingIPv4 IPv64,775
AS24319Akamai Technologies Tokyo ASNHostingIPv4 IPv64,109
AS33905Akamai International B.V.HostingIPv4 IPv63,759
AS200005Akamai International B.V.UnclassifiedIPv41,740
AS32787Akamai Technologies, Inc.HostingIPv4 IPv61,024

All 14 downstreams →

Adjacency

Adjacent networks

All 205

Every AS seen directly next to AS20940 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS16625Akamai Technologies, Inc.HostingIPv4103,629
AS36183Akamai Technologies, Inc.HostingIPv4 IPv682,588
AS1299Arelion Sweden ABTransitIPv4 IPv668,016
AS2914NTT America, Inc.TransitIPv4 IPv660,876
AS174Cogent Communications, LLCTransitIPv4 IPv650,050
AS6939Hurricane Electric LLCTransitIPv4 IPv637,216
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv635,768
AS3356Level 3 Parent, LLCTransitIPv4 IPv629,518
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv626,923
AS35994Akamai Technologies, Inc.HostingIPv4 IPv621,406

All 205 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.