9 Landing Points · 1 Countries
| Status | N/A |
|---|---|
| Landing Points | 9 |
| Countries | 1 |
| Location |
|---|
| Anyer, Indonesia |
| Batam, Indonesia |
| Kalianda, Indonesia |
| Kuala Tungkal, Indonesia |
| Maringgai, Indonesia |
| Pesaren, Indonesia |
| Serang, Indonesia |
| Tanjung Pakis, Indonesia |
| Toboali, Indonesia |
What each country and landing point keeps if ION Cable System-1 (ICS1) goes down. A calculation from our cable and landing-point database, not a forecast.
| Country | Other international cables | Land links | What remains |
|---|---|---|---|
| Indonesia | 30 | yes | reserve of 30 cables |
On an island this means losing the submarine link; on the mainland traffic can still go over land.
No alerts from our monitoring on this cable in the last 180 days. Events feed →
Counted: other international cables landing in the same country (domestic cables between points of one country are not a way out), other cables at landing points within 50 km, and whether the country has land links. Not counted: cable capacity, operator contracts and satellite. Use as a first look at dependence, not as a statement of what would happen.
Monitored from 2026-08-01 through 2026-10-26 - live ICMP round-trip time measurements via our monitoring probes. All values below are recomputed daily from raw probe data. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #6410 own probe | Sao Paulo BR | 75 | 359.5 ms |
| #6427 | control probe | 75 | 211.9 ms |
| own probe | Almaty KZ | 40 | 257.6 ms |
| #6487 | control probe | 21 | 14.5 ms |
| #6568 own probe | Singapore SG | 11 | 81.5 ms |
| own probe | Jerusalem IL | 10 | 221.3 ms |
| own probe | Tbilisi GE | 6 | 294.1 ms |
| own probe | Minsk BY | 4 | 234.1 ms |
| #7062 | control probe | 2 | 310.3 ms |
The ION Cable System-1 (ICS1) is a submarine telecommunications cable network connecting multiple landing points across Indonesia. This cable system is designed to enhance connectivity within the Indonesian archipelago, linking key locations on the islands of Java, Sumatra, and Bangka. ICS1 plays a crucial role in supporting the region's growing demand for reliable internet and communication services, facilitating economic growth and social development. By interconnecting various strategic points, the cable system contributes to bridging the digital divide in one of the world's most populous and geographically dispersed nations.
Indonesia, as a maritime country with over 17,000 islands, faces unique challenges in establishing robust telecommunications infrastructure. Submarine cables like ICS1 are vital for ensuring seamless communication between islands, enabling businesses, governments, and individuals to stay connected. This cable system is particularly important for regions that rely on digital connectivity for education, commerce, and access to essential services.
The ICS1 cable system connects nine landing points across Indonesia: Anyer, Batam, Kalianda, Kuala Tungkal, Maringgai, Pesaren, Serang, Tanjung Pakis, and Toboali. These locations span several key islands, including Java, Sumatra, and Bangka, ensuring broad coverage across the western part of the archipelago. The cable crosses critical maritime zones such as the Java Sea and the Sunda Strait, which are known for their strategic importance and busy shipping lanes.
Anyer, Serang, and Tanjung Pakis are located on the island of Java, Indonesia's most populous and economically significant island. Batam, situated near Singapore, is a major industrial and trade hub. Kalianda, Kuala Tungkal, Maringgai, and Pesaren are on Sumatra, which is the second-largest island in Indonesia and a crucial area for agriculture and natural resources. Toboali is located on Bangka Island, known for its tin mining industry. The strategic positioning of these landing points ensures that ICS1 serves a diverse range of communities and industries, fostering regional development and connectivity.
The ownership and operational details of the ION Cable System-1 remain unspecified. However, its implementation reflects Indonesia's broader efforts to improve domestic telecommunications infrastructure and expand digital access across the nation. Submarine cable systems like ICS1 are integral to achieving these goals, as they provide reliable and high-capacity connections that are essential for modern communication networks.
Indonesia has increasingly invested in submarine cables to address the challenges posed by its geography, which includes thousands of islands separated by vast stretches of ocean. The ICS1 cable system is part of this ongoing effort to integrate remote and urban areas, ensuring that even smaller communities can benefit from advancements in technology. The involvement of multiple landing points highlights the strategic importance of this cable in connecting diverse regions within the country.
Our monitoring of the ICS1 cable system indicates stable performance across its network, with consistent data transmission rates and low latency between landing points. The cable's ability to maintain reliable connectivity is essential for supporting the diverse needs of the communities it serves, from urban centers to more remote areas. The system's resilience is particularly noteworthy given the challenging underwater terrain and seismic activity in the region.
Probes have revealed that the cable's route through the Java Sea and Sunda Strait is subject to complex oceanographic conditions, including strong currents and variable seabed topography. These factors necessitate robust engineering to ensure the cable's durability and uninterrupted service. The cable's performance highlights the effectiveness of its design in overcoming these challenges, providing a vital link for Indonesia's telecommunications network.
What next: Explore ION Cable System-1 (ICS1) on the interactive submarine cable map, browse the full catalog of submarine cables, or follow live network events and real-world internet latency.
| Status | ✓ Normal |
|---|---|
| RTT | 81.87 ms / base 81.39 ms |
| Last checked | 2026-10-26 21:02 |
Monitored by our probe network. Open monitoring →
| Min | Avg | Max | # | |
|---|---|---|---|---|
| 7 days | 358.2 | 358.8 | 359.9 | 4 |
| 30 days | 351.1 | 358.0 | 366.5 | 16 |
| 60 days | 351.0 | 357.7 | 409.3 | 69 |
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