asn.dev

Observed topology

AS9121 TTNet Turk Telekomunikasyon Anonim Sirketi

Mobile ARIN

Upstreams 17 carry this network
Downstreams 321 this network carries
Adjacent (IPv4) 345
Adjacent (IPv6) 45
Upstream graph Who carries AS9121, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS9121 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 17

Networks observed carrying traffic for AS9121: 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 IPv66,525
AS6939Hurricane Electric LLCTransitIPv4 IPv64,750
AS3356Level 3 Parent, LLCTransitIPv4 IPv64,707
AS1299Arelion Sweden ABTransitIPv4 IPv63,227
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv61,236
AS3257GTT Communications Inc.TransitIPv4 IPv61,207
AS3320Deutsche Telekom AGMobileIPv4 IPv61,121
AS33891Core-Backbone GmbHHostingIPv4624
AS3303Swisscom (Schweiz) AGResidentialIPv4484
AS9002RETN LimitedUnclassifiedIPv4 IPv6334

All 17 upstreams →

Transit

Downstream networks

All 321

Networks for which AS9121 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS47331TTNet A.S.UnclassifiedIPv4 IPv647,193
AS20978TT Mobil Iletisim Hizmetleri A.SUnclassifiedIPv4 IPv627,647
AS51559Netinternet Bilisim Teknolojileri ASHostingIPv4 IPv618,822
AS47524Turksat Uydu Haberlesme Kablo TV ve Isletme A.S.MobileIPv4 IPv614,917
AS44558Netonline Bilisim Sirketi LTDUnclassifiedIPv4 IPv613,946
AS34296Millenicom Telekomunikasyon Hizmetleri Anonim SirketiResidentialIPv410,874
AS9021Is Net Elektonik Bilgi Uretim Dagitim Ticaret ve Iletisim Hizmetleri A.S.UnclassifiedIPv4 IPv67,697
AS47883KIBRIS MOBILE TELEKOMUNIKASYON LTD.UnclassifiedIPv45,165
AS12978ANDROMEDA TV DIGITAL PLATFORM ISLETMECILIGI A.S.UnclassifiedIPv4 IPv63,860
AS25145Teknotel Telekomunikasyon Sanayi Ve Ticaret A.S.UnclassifiedIPv4 IPv62,578

All 321 downstreams →

Adjacency

Adjacent networks

All 345

Every AS seen directly next to AS9121 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2914NTT America, Inc.TransitIPv4 IPv662,746
AS3356Level 3 Parent, LLCTransitIPv4 IPv654,855
AS1299Arelion Sweden ABTransitIPv4 IPv652,400
AS47331TTNet A.S.UnclassifiedIPv4 IPv647,193
AS6939Hurricane Electric LLCTransitIPv4 IPv636,106
AS20978TT Mobil Iletisim Hizmetleri A.SUnclassifiedIPv4 IPv627,647
AS51559Netinternet Bilisim Teknolojileri ASHostingIPv4 IPv620,286
AS6205HizliNet Teknoloji A.S.HostingIPv4 IPv615,203
AS47524Turksat Uydu Haberlesme Kablo TV ve Isletme A.S.MobileIPv4 IPv615,054
AS44558Netonline Bilisim Sirketi LTDUnclassifiedIPv4 IPv614,146

All 345 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.