asn.dev

Observed topology

AS204457 ATLANTIS-CENTRAL Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.

Residential RIPE

Upstreams 28 carry this network
Downstreams 14 this network carries
Adjacent (IPv4) 46
Adjacent (IPv6) 19
Upstream graph Who carries AS204457, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS204457 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 28

Networks observed carrying traffic for AS204457: 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 IPv6450
AS6204INTERKVM HOST SRLUnclassifiedIPv4 IPv6405
AS6939Hurricane Electric LLCTransitIPv4 IPv6168
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv680
AS8280SYNAPSECOM S.A. Provider of Telecommunications and Internet ServicesHostingIPv4 IPv627
AS24482SG.GSHostingIPv4 IPv627
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv627
AS48185team.blue NVUnclassifiedIPv4 IPv627
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv627
AS49673Truenetwork LLCUnclassifiedIPv426

All 28 upstreams →

Transit

Downstream networks

All 14

Networks for which AS204457 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS2096042E TELEKOMUNIKASYON LTD STIUnclassifiedIPv4505
AS205570SIBANET TELEKOM LIMITED SIRKETIUnclassifiedIPv4 IPv6468
AS209007Wifi Telekom Bilisim Sanayi ve Ticaret A.SUnclassifiedIPv4246
AS214608Gazinet Internet Iletisim teknolojileri ltd. Sti.UnclassifiedIPv4121
AS51801INTERNET KUTUSU TELEKOMUNIKASYON BILISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4120
AS62425Mailbox Internet Hizmetleri Ltd. Sti.HostingIPv478
AS51722PIXOOF TEKNOLOJI ANONIM SIRKETIHostingIPv466
AS56325Markahost Telekomunikasyon Ve Ticaret Limited SirketiUnclassifiedIPv462
AS202303TRENDNET TELEKOMUNIKASYON BILISIM HIZMETLERI TICARET LIMITED SIRKETIUnclassifiedIPv462
AS213658Expresnet Elektronik Haberlesme Bilisim Ve Ticaret Limited SirketiUnclassifiedIPv462

All 14 downstreams →

Adjacency

Adjacent networks

All 48

Every AS seen directly next to AS204457 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS9002RETN LimitedUnclassifiedIPv4 IPv61,556
AS6204INTERKVM HOST SRLUnclassifiedIPv4 IPv61,046
AS2096042E TELEKOMUNIKASYON LTD STIUnclassifiedIPv4605
AS6939Hurricane Electric LLCTransitIPv4 IPv6533
AS205570SIBANET TELEKOM LIMITED SIRKETIUnclassifiedIPv4 IPv6468
AS49565Pole Telekomunikasyon Sanayi ve Ticaret Anonim SirketiUnclassifiedIPv4278
AS209007Wifi Telekom Bilisim Sanayi ve Ticaret A.SUnclassifiedIPv4246
AS62425Mailbox Internet Hizmetleri Ltd. Sti.HostingIPv4135
AS56325Markahost Telekomunikasyon Ve Ticaret Limited SirketiUnclassifiedIPv4124
AS214608Gazinet Internet Iletisim teknolojileri ltd. Sti.UnclassifiedIPv4121

All 48 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-12 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.36M 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.