asn.dev

Observed topology

AS4766 KIXS-AS-KR-KR - Korea Telecom

Mobile DROP-listed space ARIN Cable/DSL/ISP

Upstreams 31 carry this network
Downstreams 563 this network carries
Adjacent (IPv4) 599
Adjacent (IPv6) 36
Upstream graph Who carries AS4766, and who carries them, drawn as a map up to the transit-free core. 14 exchanges Where AS4766 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 31

Networks observed carrying traffic for AS4766: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv661,466
AS174Cogent Communications, LLCTransitIPv4 IPv613,559
AS1299Arelion Sweden ABTransitIPv4 IPv610,722
AS3356Level 3 Parent, LLCTransitIPv4 IPv68,118
AS2914NTT America, Inc.TransitIPv4 IPv66,534
AS3257GTT Communications Inc.TransitIPv42,607
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv62,499
AS852TELUS Communications Inc.ResidentialIPv4 IPv62,184
AS6830Liberty Global Europe Holding B.V.ResidentialIPv4 IPv62,178
AS3303Swisscom (Schweiz) AGResidentialIPv42,166

All 31 upstreams →

Transit

Downstream networks

All 563

Networks for which AS4766 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS17841NATIONAL INFORMATION RESOURCES SERVICEUnclassifiedIPv419,437
AS55592Korea Data Telecommunication Co., Ltd.UnclassifiedIPv47,380
AS7562HCN DongjakResidentialIPv45,789
AS17881Inet Hosting, Inc.HostingIPv44,980
AS55615DOUZONEBIZONUnclassifiedIPv44,952
AS9754CHOSUN UNIVERSITYEducationIPv44,781
AS38676flexnetworksUnclassifiedIPv44,240
AS55618UNIVERSITY OF ULSANUnclassifiedIPv43,969
AS38105SOON CHUN HYANG UNIVERSITYUnclassifiedIPv43,735
AS9524Hyundai Autoever Corp.UnclassifiedIPv43,583

All 563 downstreams →

Adjacency

Adjacent networks

All 599

Every AS seen directly next to AS4766 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6260,696
AS7562HCN DongjakResidentialIPv450,101
AS1299Arelion Sweden ABTransitIPv4 IPv645,908
AS174Cogent Communications, LLCTransitIPv4 IPv636,908
AS3356Level 3 Parent, LLCTransitIPv4 IPv631,129
AS17841NATIONAL INFORMATION RESOURCES SERVICEUnclassifiedIPv426,219
AS2914NTT America, Inc.TransitIPv4 IPv620,375
AS9957KINXHostingIPv414,728
AS50304Blix Solutions ASUnclassifiedIPv49,592
AS852TELUS Communications Inc.ResidentialIPv4 IPv69,539

All 599 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.