asn.dev

Observed topology

AS12735 ASTURKNET

Unclassified RIPE NSP

Upstreams 23 carry this network
Downstreams 63 this network carries
Adjacent (IPv4) 92
Adjacent (IPv6) 37
Upstream graph Who carries AS12735, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS12735 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 23

Networks observed carrying traffic for AS12735: 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
AS3257GTT Communications Inc.TransitIPv4 IPv610,734
AS6939Hurricane Electric LLCTransitIPv4 IPv69,770
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv68,842
AS9002RETN LimitedUnclassifiedIPv4 IPv65,924
AS57344Telehouse ADResidentialIPv4 IPv62,443
AS9121Turk Telekomunikasyon Anonim SirketiMobileIPv41,767
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,759
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv61,641
AS24482SG.GSHostingIPv4 IPv61,050
AS37721Virtual-Technologies-Solutions-SAResidentialIPv4 IPv61,048

All 23 upstreams →

Transit

Downstream networks

All 63

Networks for which AS12735 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS34619CIZGI TELEKOMUNIKASYON ANONIM SIRKETIHostingIPv46,081
AS48737Dorabase Veri Merkezi Hizmetleri A.S.UnclassifiedIPv4 IPv62,910
AS8517National Academic Network and Information CenterEducationIPv4 IPv62,094
AS43391NETDIREKT BILISIM DANISMANLIK ILETISIM HIZMETLERI SANAYI VE TICARET ASHostingIPv4 IPv61,486
AS199724TeknoDC Bilisim Teknolojileri A.S.UnclassifiedIPv41,312
AS29399Ramtek Telekomunikasyon Hizmetleri Sanayi Ve Ticaret Limited SirketiResidentialIPv4 IPv6946
AS3188Alastyr Telekomunikasyon A.S.HostingIPv4 IPv6627
AS42868Niobe Bilisim Ltd. Sti.HostingIPv4609
AS15830Equinix (EMEA) Acquisition Enterprises B.V.HostingIPv4 IPv6508
AS34476Vayfi Bilgi Teknolojileri A.S.UnclassifiedIPv4489

All 63 downstreams →

Adjacency

Adjacent networks

All 95

Every AS seen directly next to AS12735 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS57463NetIX Communications JSCUnclassifiedIPv4 IPv614,947
AS9002RETN LimitedUnclassifiedIPv4 IPv614,816
AS3257GTT Communications Inc.TransitIPv4 IPv614,448
AS6939Hurricane Electric LLCTransitIPv4 IPv612,633
AS8517National Academic Network and Information CenterEducationIPv4 IPv66,398
AS34619CIZGI TELEKOMUNIKASYON ANONIM SIRKETIHostingIPv46,081
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv63,974
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv63,026
AS48737Dorabase Veri Merkezi Hizmetleri A.S.UnclassifiedIPv4 IPv62,918
AS57344Telehouse ADResidentialIPv4 IPv62,443

All 95 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-27 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.06M 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.