asn.dev

Observed topology

AS9121 TTNET

Mobile ARIN NSP

Upstreams 18 carry this network
Downstreams 323 this network carries
Adjacent (IPv4) 345
Adjacent (IPv6) 47
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 18

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 IPv66,489
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,007
AS6939Hurricane Electric LLCTransitIPv4 IPv64,840
AS1299Arelion Sweden ABTransitIPv4 IPv63,482
AS3257GTT Communications Inc.TransitIPv4 IPv61,512
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv61,238
AS3320Deutsche Telekom AGMobileIPv4 IPv61,133
AS33891Core-Backbone GmbHHostingIPv4624
AS3303Swisscom (Schweiz) AGResidentialIPv4459
AS9002RETN LimitedUnclassifiedIPv4 IPv6432

All 18 upstreams →

Transit

Downstream networks

All 323

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 IPv648,537
AS20978TT Mobil Iletisim Hizmetleri A.SUnclassifiedIPv4 IPv628,577
AS51559Netinternet Bilisim Teknolojileri ASHostingIPv4 IPv624,041
AS44558Netonline Bilisim Sirketi LTDUnclassifiedIPv4 IPv614,427
AS47524Turksat Uydu Haberlesme Kablo TV ve Isletme A.S.MobileIPv4 IPv613,971
AS34296Millenicom Telekomunikasyon Hizmetleri Anonim SirketiResidentialIPv411,254
AS9021Is Net Elektonik Bilgi Uretim Dagitim Ticaret ve Iletisim Hizmetleri A.S.UnclassifiedIPv4 IPv67,987
AS47883KIBRIS MOBILE TELEKOMUNIKASYON LTD.UnclassifiedIPv46,192
AS12978ANDROMEDA TV DIGITAL PLATFORM ISLETMECILIGI A.S.UnclassifiedIPv4 IPv63,994
AS25145Teknotel Telekomunikasyon Sanayi Ve Ticaret A.S.UnclassifiedIPv4 IPv62,503

All 323 downstreams →

Adjacency

Adjacent networks

All 347

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

ASNetworkTypeFamiliesPaths seen
AS2914NTT America, Inc.TransitIPv4 IPv661,856
AS1299Arelion Sweden ABTransitIPv4 IPv658,030
AS3356Level 3 Parent, LLCTransitIPv4 IPv657,223
AS47331TTNet A.S.UnclassifiedIPv4 IPv648,537
AS6939Hurricane Electric LLCTransitIPv4 IPv636,837
AS20978TT Mobil Iletisim Hizmetleri A.SUnclassifiedIPv4 IPv628,577
AS51559Netinternet Bilisim Teknolojileri ASHostingIPv4 IPv625,435
AS44558Netonline Bilisim Sirketi LTDUnclassifiedIPv4 IPv614,637
AS6205HizliNet Teknoloji A.S.HostingIPv4 IPv614,611
AS47524Turksat Uydu Haberlesme Kablo TV ve Isletme A.S.MobileIPv4 IPv614,107

All 347 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-30 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.49M 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.