asn.dev

Observed topology

AS51722 TEKNOSOS

Hosting Spamhaus ASN-DROP RIPE

Upstreams 3 carry this network
Downstreams 12 this network carries
Adjacent (IPv4) 12
Adjacent (IPv6) 8
Upstream graph Who carries AS51722, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS51722 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS51722: 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
AS9002RETN LimitedUnclassifiedIPv4 IPv61,024
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv6390
AS204457Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.ResidentialIPv4 IPv612

Transit

Downstream networks

All 12

Networks for which AS51722 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS44559IT HOSTLINE LTDUnclassifiedIPv417,466
AS44382Fiba Cloud Operation Company, LLCHostingIPv4 IPv6759
AS207279Markahost Telekomunikasyon Ve Ticaret Limited SirketiUnclassifiedIPv6572
AS204843STERLY VERI MERKEZI YAZILIM VE SIBER GUVENLIK HIZMETLERI A.S.UnclassifiedIPv6570
AS56325Markahost Telekomunikasyon Ve Ticaret Limited SirketiUnclassifiedIPv6532
AS26383Baxet Group Inc.UnclassifiedIPv4396
AS198178365.partners INCUnclassifiedIPv4177
AS215710HDM Dijital Hizmetleri Ticaret Limited SirketiUnclassifiedIPv4118
AS208821DURU INTERNET VE BILISIM TEKNOLOJILERI SANAYI TICARET LIMITED SIRKETIUnclassifiedIPv460
AS210699WEDEPLOY SASHostingIPv451

All 12 downstreams →

Adjacency

Adjacent networks

All 16

Every AS seen directly next to AS51722 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4 IPv619,476
AS44559IT HOSTLINE LTDUnclassifiedIPv417,466
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv62,764
AS44382Fiba Cloud Operation Company, LLCHostingIPv4 IPv6759
AS207279Markahost Telekomunikasyon Ve Ticaret Limited SirketiUnclassifiedIPv6572
AS204843STERLY VERI MERKEZI YAZILIM VE SIBER GUVENLIK HIZMETLERI A.S.UnclassifiedIPv6570
AS56325Markahost Telekomunikasyon Ve Ticaret Limited SirketiUnclassifiedIPv6532
AS26383Baxet Group Inc.UnclassifiedIPv4396
AS215710HDM Dijital Hizmetleri Ticaret Limited SirketiUnclassifiedIPv4231
AS198178365.partners INCUnclassifiedIPv4177

All 16 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-21 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.