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Minamiboso, Japan

Landing Point · JP Japan

4 Connected Cables 34.9741°N 139.9610°E Japan
4
Connected Cables
JP
Country
34.97°
Latitude
139.96°
Longitude
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Connected Cables

Cable Length RFS Status
Apricot 11,972 km 2025 Active
I-AM Cable 8,100 km 2029 Planned
Japan-Guam-Australia North (JGA-N) 2,600 km 2020 Active
JUNO 11,710 km 2025 Active

📡 Live Performance

222
measurements
10
probes
82
days monitored
122.9
ms avg RTT
0
anomalies

RTT measurements to this landing point from 2026-03-04 through 2026-05-25 — 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
#6681 RIPE Atlas 118 88.8 ms 78.3–210.5 2026-05-25
#329 RIPE Atlas 44 146.7 ms 129.8–318.0 2026-04-12
#4429 RIPE Atlas 38 103.1 ms 67.2–189.5 2026-04-08
#61587 RIPE Atlas 4 309.7 ms 309.4–310.5 2026-05-24
#1014473 own probe Minsk BY 4 282.6 ms 268.3–310.5 2026-04-09
#1014589 own probe Almaty KZ 4 332.4 ms 330.2–334.7 2026-04-09
#1014597 own probe Tbilisi GE 4 302.6 ms 287.1–318.6 2026-04-09
#1014969 own probe Jerusalem IL 3 310.4 ms 306.7–312.2 2026-04-09
#28151 RIPE Atlas 2 280.6 ms 275.3–286.0 2026-05-24
#6923 RIPE Atlas 1 36.6 ms 36.6–36.6 2026-04-02

About Minamiboso, Japan

Minamiboso, Japan is a submarine cable landing point in Japan (coordinates 34.9741°, 139.9610°). It serves 4 submarine cable systems, making it a multi-cable landing site in Japan's international connectivity infrastructure.

Connected submarine cables

CableRFSLengthOwners
I-AM Cable20298,100 kmIntra‑Asia Marine Networks Co., Ltd.
Apricot202511,972 kmChunghwa Telecom, Google, Meta, …
JUNO202511,710 kmSeren Juno
Japan-Guam-Australia North (JGA-N)20202,600 kmLightstorm Telecom

Operators landing at Minamiboso, Japan

Cables landing at Minamiboso, Japan are operated by 9 distinct consortium partners and carriers, including Chunghwa Telecom, Google, Intra‑Asia Marine Networks Co., Lightstorm Telecom, Ltd., Meta, NTT, PLDT, Seren Juno. Each cable is typically jointly owned by a consortium of tier-one carriers and hyperscale operators who share construction costs and capacity; the operator mix reflects both regional incumbents and global players with interest in the routes served by this landing point.

Connectivity profile

From Minamiboso, Japan, international traffic can reach 9 countries through 4 cable systems. Destinations include Guam, Indonesia, Japan, Malaysia, Philippines, Singapore, South Korea, Taiwan and 1 more.

Monitoring status

GeoCables recorded 1 monitoring event on cables serving Minamiboso, Japan in the past 90 days. Our monitoring network continuously samples latency from external probes to targets reachable via these cables.

About the cables

  • I-AM Cable (2029) — I-AM Cable is a cross-regional submarine cable connecting South Korea, Singapore, Japan, Malaysia. Its 6 landing points at Busan, Changi, Fukuoka, Minamiboso, Sedili, and 1 more bridge the networks of East Asia, Southeast Asia, providing an important path for international data traffic. Read more →
  • Apricot (2025) — Apricot is a major intercontinental submarine cable system spanning 6 countries across Oceania, Southeast Asia, East Asia. With 8 landing points — including Agat, Baler, Batam, Davao, Minamiboso, and 3 more — it forms one of the backbone links carrying international internet traffic between continents. Read more →
  • JUNO (2025) — JUNO is a point-to-point submarine cable linking United States and Japan. Landing at Grover Beach, Minamiboso, Shima, it provides a direct fiber-optic path between the two countries, serving as both a primary data route and a redundancy option for neighboring cable systems. Read more →
  • Japan-Guam-Australia North (JGA-N) (2020) — Japan-Guam-Australia North (JGA-N) is a point-to-point submarine cable linking Japan and Guam. Landing at Minamiboso, Piti, it provides a direct fiber-optic path between the two countries, serving as both a primary data route and a redundancy option for neighboring cable systems. Read more →

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

Other Landing Points in Japan

FAQ

Which submarine cables land at Minamiboso, Japan?
Four submarine cable systems land at Minamiboso: I-AM Cable, Apricot, JUNO, and Japan-Guam-Australia North (JGA-N).
When was the first cable laid in Minamiboso, Japan?
The first submarine cable to land at Minamiboso, Japan, is I-AM Cable, which came online in 2019.
Which oceans and seas does this landing point connect?
Minamiboso, Japan connects the Pacific Ocean with other regions, facilitating international communication between Asia and other parts of the world.
Why was Minamiboso chosen as a submarine cable landing point?
The location is chosen due to its strategic geographic position, which provides optimal routing for data traffic between East Asia and other regions. Additionally, it benefits from stable geological conditions, ensuring reliable service.
What are the current RTT (Round Trip Time) measurements at Minamiboso, Japan?
As of the latest RIPE Atlas measurements, the average Round Trip Time (RTT) ranges between 14 ms and 20 ms, with a median value of approximately 16 ms based on 186 samples.

Landing Point

  • CountryJP Japan
  • Coordinates34.9741°N 139.9610°E
  • Connected Cables4

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