asn.dev

Observed topology

AS3320 DTAG Deutsche Telekom AG

Mobile RIPE

Upstreams 30 carry this network
Downstreams 673 this network carries
Adjacent (IPv4) 689
Adjacent (IPv6) 414
Upstream graph Who carries AS3320, and who carries them, drawn as a map up to the transit-free core. 7 exchanges Where AS3320 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 30

Networks observed carrying traffic for AS3320: 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 IPv610,422
AS3356Level 3 Parent, LLCTransitIPv4 IPv67,568
AS6939Hurricane Electric LLCTransitIPv4 IPv67,117
AS2914NTT America, Inc.TransitIPv4 IPv65,773
AS3257GTT Communications Inc.TransitIPv43,338
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,884
AS174Cogent Communications, LLCTransitIPv4 IPv62,278
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv61,898
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv61,883
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv61,014

All 30 upstreams →

Transit

Downstream networks

All 673

Networks for which AS3320 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS16509Amazon.com, Inc.HostingIPv4 IPv623,720
AS9583Sify LimitedUnclassifiedIPv4 IPv611,554
AS5483Magyar Telekom Plc.MobileIPv4 IPv66,730
AS8412T-Mobile Austria GmbHResidentialIPv4 IPv65,897
AS9183Bosch Gesellschaft mit Beschraenkter HaftungUnclassifiedIPv43,952
AS12586GHOSTnet GmbHHostingIPv43,345
AS20940Akamai International B.V.HostingIPv4 IPv63,001
AS2773Deutsche Telekom AGUnclassifiedIPv4 IPv62,881
AS48951Telekom Deutschland GmbHUnclassifiedIPv4 IPv61,666
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv61,571

All 673 downstreams →

Adjacency

Adjacent networks

All 689

Every AS seen directly next to AS3320 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv6141,253
AS3356Level 3 Parent, LLCTransitIPv4 IPv685,369
AS852TELUS Communications Inc.ResidentialIPv4 IPv662,623
AS16509Amazon.com, Inc.HostingIPv4 IPv628,447
AS1299Arelion Sweden ABTransitIPv4 IPv626,547
AS6939Hurricane Electric LLCTransitIPv4 IPv625,754
AS12552GlobalConnect ABUnclassifiedIPv4 IPv624,653
AS7018AT&T Enterprises, LLCResidentialIPv4 IPv620,542
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv615,991
AS5483Magyar Telekom Plc.MobileIPv4 IPv614,825

All 689 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.