asn.dev

Observed topology

AS51559 NETINTERNET Netinternet Bilisim Teknolojileri AS

Hosting RIPE Cable/DSL/ISP

Upstreams 6 carry this network
Downstreams 10 this network carries
Adjacent (IPv4) 13
Adjacent (IPv6) 10
Upstream graph Who carries AS51559, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS51559 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS51559: 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
AS9121Turk Telekomunikasyon Anonim SirketiMobileIPv4 IPv623,733
AS6939Hurricane Electric LLCTransitIPv4 IPv61,353
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv6633
AS25091IP-Max SAUnclassifiedIPv4 IPv6527
AS212477RoyaleHosting BVHostingIPv4240
AS12735TurkNet Iletisim Hizmetleri A.S.UnclassifiedIPv455

Transit

Downstream networks

inferred

Networks for which AS51559 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS42846GNET Internet Telekomunikasyon A.S.UnclassifiedIPv4 IPv6867
AS134094Serverfield Co., Ltd.UnclassifiedIPv4 IPv6337
AS213274Verinomi Bilisim Tek. San. ve Tic. Ltd. Sti.HostingIPv4 IPv6278
AS203377Mehmet UzuncaUnclassifiedIPv4121
AS213252Cenuta Telekomunikasyon Anonim SirketiHostingIPv4120
AS206592Antreta Bilgisayar Sanayi ve Ticaret Limited SirketiUnclassifiedIPv4118
AS206938Nesildc Bilisim Cozumleri Sanayi Ve Ticaret Limited SirketiUnclassifiedIPv637
AS209127BULUTFON TELEKOMUNIKASYON SAN ve TIC ASUnclassifiedIPv637
AS206849OyunYoneticisi Marketing LTDUnclassifiedIPv44
AS197871MOBILIN TEKNOLOJI VE BILISIM LIMITED SIRKETIUnclassifiedIPv62

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS51559 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9121Turk Telekomunikasyon Anonim SirketiMobileIPv4 IPv625,064
AS6939Hurricane Electric LLCTransitIPv4 IPv61,639
AS42846GNET Internet Telekomunikasyon A.S.UnclassifiedIPv4 IPv6867
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv6654
AS25091IP-Max SAUnclassifiedIPv4 IPv6532
AS212477RoyaleHosting BVHostingIPv4476
AS134094Serverfield Co., Ltd.UnclassifiedIPv4 IPv6337
AS213274Verinomi Bilisim Tek. San. ve Tic. Ltd. Sti.HostingIPv4 IPv6278
AS213252Cenuta Telekomunikasyon Anonim SirketiHostingIPv4180
AS12735TurkNet Iletisim Hizmetleri A.S.UnclassifiedIPv4157

All 16 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.