Connected Cables

Cable	Length	RFS	Status
Japan Information Highway (JIH)	5,150 km	1999	Active

📡 Live Performance

measurements

probes

days monitored

299.4

ms avg RTT

anomalies

RTT measurements to this landing point from 2026-03-24 through 2026-05-08 — live ICMP round-trip time via RIPE Atlas probes. Recomputed daily. ✓ No anomalies detected in the monitored period.

Measurement sources

Probe	Location	Samples	Avg	Min–Max	Last seen
#1014473 own probe	Minsk BY	6	292.3 ms	254.5–314.0	2026-05-08
#1014589 own probe	Almaty KZ	6	319.4 ms	275.9–346.1	2026-05-08
#1014597 own probe	Tbilisi GE	6	304.6 ms	267.9–389.4	2026-05-08
#1014969 own probe	Jerusalem IL	6	295.0 ms	276.7–310.8	2026-05-08
#1015313 own probe	Sevastopol UA	2	295.3 ms	290.4–300.3	2026-04-22
#1015523 own probe	Moscow RU	1	257.9 ms	257.9–257.9	2026-05-08
#1015563 own probe	Saint Petersburg RU	1	265.8 ms	265.8–265.8	2026-05-08

About Sendai, Japan

Sendai, Japan is a submarine cable landing point in Japan (coordinates 38.2667°, 140.8667°). It serves 1 submarine cable system, making it a single-cable landing in Japan's international connectivity infrastructure.

Sendai is the capital city of Miyagi Prefecture and the largest city in the Tōhoku region. As of 1 August 2023, the city had a population of 1,098,335 in 539,698 households, making it the twelfth most populated city in Japan. Wikipedia

Connected submarine cables

Cable	RFS	Length	Owners
Japan Information Highway (JIH)	1999	5,150 km	KDDI

Connectivity profile

From Sendai, Japan, international traffic can reach 1 countries through 1 cable system. Destinations include Japan. This location depends on a single cable system — a characteristic that makes it strategically sensitive to physical disruptions.

Monitoring status

No monitoring incidents were recorded on cables serving Sendai, Japan in the past 90 days — all connected systems remained within normal latency thresholds. Our monitoring network continuously samples latency from external probes to targets reachable via these cables.

About the cables

Japan Information Highway (JIH) (1999) — Japan Information Highway (JIH) is a domestic submarine cable network within Japan, connecting 9 coastal and island locations including Akita, Chikura, Ibaraki, Ishikari, Miyazaki, and 4 more. The system provides essential telecommunications infrastructure for communities that would otherwise depend entirely on satellite or microwave links. Read more →

Submarine cable data from TeleGeography. Geographic context from Wikipedia. Monitoring metrics updated continuously by GeoCables.