Landing Point · JP Japan
| Cable | Status |
|---|---|
| YUI | Active |
RTT measurements to this landing point from 2026-05-12 through 2026-06-02 — live ICMP round-trip time via RIPE Atlas probes. Recomputed daily. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #1014589 own probe | Almaty KZ | 2 | 277.0 ms |
| #6410 own probe | Sao Paulo BR | 1 | 247.4 ms |
| #6427 own probe | Sydney AU | 1 | 168.8 ms |
| #6487 own probe | Singapore SG | 1 | 80.1 ms |
| #7062 own probe | Cape Town ZA | 1 | 427.3 ms |
| #1014473 own probe | Minsk BY | 1 | 300.2 ms |
| #1014597 own probe | Tbilisi GE | 1 | 282.3 ms |
| #1014969 own probe | Jerusalem IL | 1 | 278.2 ms |
| #1015523 own probe | Moscow RU | 1 | 253.0 ms |
Nakadomari is a town in Aomori Prefecture, on the northern coast of Japan's Honshu island. It serves as a submarine cable landing point within Japan's broader coastal infrastructure, which spans 51 submarine cables distributed across 68 landing points nationwide. One submarine cable currently lands at Nakadomari, the YUI cable, connecting it to other points within Japan.
Because the YUI cable links landing points exclusively within Japan, Nakadomari functions as part of a domestic corridor rather than an intercontinental or trans-oceanic route. This intra-Japan connectivity represents a distinct role within the national submarine cable network, supporting links between different parts of the Japanese archipelago.
YUI is a submarine cable spanning 720 km, with a Ready for Service (RFS) date of 2023 (draft status). The cable connects landing points within Japan, making it a domestic system. Nakadomari represents one of YUI's Japanese termination points, contributing to intra-national submarine cable connectivity along the country's coastline.
Within Japan, Nakadomari hosts one submarine cable, placing it among the more modestly connected of the country's 68 landing points. Major Japanese hubs such as Shima (12 cables), Maruyama (9 cables), and Chikura (8 cables) handle considerably higher cable volumes, while landing points like Hachijo, Minamiboso, and Naha each host four cables. Nakadomari ranks within the top 68 percent of Japanese landing points by cable count, reflecting its role as a smaller but established node in the national network.
Nakadomari operates as a single-cable terminus within Japan's submarine cable landscape. The YUI cable, at 720 km, enables domestic submarine connectivity, linking Nakadomari to other Japanese landing points and supporting intra-national data routing along a corridor that does not extend beyond Japan's borders. As a terminus rather than a multi-cable hub, Nakadomari's network function is narrowly defined but nonetheless contributes a distinct entry point into Japan's domestic submarine cable graph.
Within the broader regional submarine cable graph for Japan, the presence of a landing point in Aomori Prefecture extends the reach of submarine cable infrastructure into the country's northern Honshu coastline, a geographic area where such connectivity points are less densely distributed than in Japan's more heavily cabled southern and central coastal zones.
View actual submarine cable routing from Nakadomari, Japan — with backbone nodes, distance calculations, and latency estimates
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