asn.dev

Observed topology

AS7668 HTCN Hokuriku Telecommunication Network Co.

Unclassified APNIC

Upstreams 10 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 14
Adjacent (IPv6) 6
Upstream graph Who carries AS7668, and who carries them, drawn as a map up to the transit-free core. 5 exchanges Where AS7668 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS7668: 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
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv6254
AS2516KDDI CORPORATIONMobileIPv4 IPv6105
AS6939Hurricane Electric LLCTransitIPv477
AS2519ARTERIA Networks CorporationUnclassifiedIPv460
AS17676SoftBank Corp.MobileIPv4 IPv631
AS24482SG.GSHostingIPv4 IPv610
AS17534NSK Co.,Ltd.UnclassifiedIPv49
AS17639Converge ICT Solutions Inc.UnclassifiedIPv48
AS20485Joint Stock Company TransTeleComUnclassifiedIPv48
AS15412Flag Telecom UK LimitedUnclassifiedIPv61

Transit

Downstream networks

inferred

Networks for which AS7668 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS4711INTEC Inc.UnclassifiedIPv478
AS17932Japan Advanced Institute of Science and TechnologyUnclassifiedIPv458
AS18123INAOKI EDUCATIONAL INSTITUTIONUnclassifiedIPv4 IPv640
AS24260Board of trusty: Kinjo-GakuenUnclassifiedIPv410
AS24264Kanazawa Institute of TechnologyUnclassifiedIPv43

Adjacency

Adjacent networks

All 15

Every AS seen directly next to AS7668 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2497Internet Initiative Japan Inc.UnclassifiedIPv4 IPv6322
AS2516KDDI CORPORATIONMobileIPv4 IPv6143
AS2519ARTERIA Networks CorporationUnclassifiedIPv4107
AS6939Hurricane Electric LLCTransitIPv486
AS4711INTEC Inc.UnclassifiedIPv478
AS17932Japan Advanced Institute of Science and TechnologyUnclassifiedIPv458
AS17676SoftBank Corp.MobileIPv4 IPv641
AS18123INAOKI EDUCATIONAL INSTITUTIONUnclassifiedIPv4 IPv640
AS17534NSK Co.,Ltd.UnclassifiedIPv423
AS24482SG.GSHostingIPv4 IPv611

All 15 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.