asn.dev

Observed topology

AS9848 SejongTelecom-AS-KR-KR - SEJONG NETWORKS

Residential APNIC

Upstreams 13 carry this network
Downstreams 53 this network carries
Adjacent (IPv4) 67
Adjacent (IPv6) 9
Upstream graph Who carries AS9848, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS9848 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 13

Networks observed carrying traffic for AS9848: 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
AS15412Flag Telecom UK LimitedUnclassifiedIPv4 IPv62,545
AS58453China Mobile International LimitedUnclassifiedIPv4 IPv62,123
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv61,670
AS4766Korea TelecomMobileIPv41,544
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4821
AS138195MOACK.Co.LTDUnclassifiedIPv4696
AS6939Hurricane Electric LLCTransitIPv4284
AS24482SG.GSHostingIPv4112
AS23764CTGNetUnclassifiedIPv632
AS9957KINXHostingIPv429

All 13 upstreams →

Transit

Downstream networks

All 53

Networks for which AS9848 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS4670ShinbiroUnclassifiedIPv4 IPv622,862
AS18300KEPCOUnclassifiedIPv415,986
AS9952Hostway IDCHostingIPv410,097
AS10036DLIVEResidentialIPv43,704
AS131866Digital Edge KoreaUnclassifiedIPv4 IPv63,575
AS17589GABIA Inc.HostingIPv42,901
AS45374CCSUnclassifiedIPv42,070
AS17833NCOM ltd.HostingIPv41,368
AS9781GREEN CABLE TELEVISION STATIONResidentialIPv41,301
AS38676flexnetworksUnclassifiedIPv4912

All 53 downstreams →

Adjacency

Adjacent networks

All 68

Every AS seen directly next to AS9848 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv638,075
AS4670ShinbiroUnclassifiedIPv4 IPv624,042
AS15412Flag Telecom UK LimitedUnclassifiedIPv4 IPv620,796
AS18300KEPCOUnclassifiedIPv415,986
AS23764CTGNetUnclassifiedIPv4 IPv614,940
AS9952Hostway IDCHostingIPv410,097
AS58453China Mobile International LimitedUnclassifiedIPv4 IPv67,195
AS7562HCN DongjakResidentialIPv45,795
AS46011LXUnclassifiedIPv45,146
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv44,725

All 68 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.