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Barat Timur Indonesia-1 (BTI-1)

Planned

4,500 km · 6 Landing Points · 1 Countries · Ready for Service: 2028

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Specifications

Length4,500 km
StatusPlanned
Ready for Service2028
Landing Points6
Countries1

Owners

Super Sistem (PT Super Sistem Data)

Landing Points (6)

Location Country Position
Balikpapan, Indonesia ID Indonesia -1.2654°, 116.8312°
Gresik, Indonesia ID Indonesia -7.1652°, 112.6524°
Makassar, Indonesia ID Indonesia -5.1522°, 119.4124°
Manado, Indonesia ID Indonesia 1.4908°, 124.8396°
Nongsa, Indonesia ID Indonesia 1.1965°, 104.1030°
Tanjung Pakis, Indonesia ID Indonesia -5.9813°, 107.1209°

If this cable is cut

What each country and landing point keeps if Barat Timur Indonesia-1 (BTI-1) goes down. A calculation from our cable and landing-point database, not a forecast.

CountryOther international cablesLand linksWhat remains
Indonesia30 yes reserve of 30 cables

Landing points with no other cable nearby

Every landing point of this cable has another cable within 50 km.

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.

Live Performance

286
measurements
9
probes
126
days monitored
249.4
ms avg RTT
0
anomalies

Monitored from 2026-06-15 through 2026-10-19 - 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.

Measurement sources

Probe Location Samples Avg Min-Max Last seen
#6410 own probe Sao Paulo BR 90 362.1 ms 341.4-521.6 2026-10-19
#6427 own probe Sydney AU 90 216.1 ms 103.7-600.6 2026-10-19
own probe Almaty KZ 59 255.1 ms 169.6-321.0 2026-10-05
#6568 own probe Singapore SG 19 84.7 ms 81.7-101.8 2026-10-19
#6487 control probe 16 16.6 ms 11.9-24.8 2026-08-25
own probe Tbilisi GE 6 204.8 ms 141.1-323.9 2026-09-05
own probe Minsk BY 4 142.2 ms 109.1-239.7 2026-07-11
#7062 control probe 1 363.5 ms 363.5-363.5 2026-07-11
own probe Jerusalem IL 1 214.9 ms 214.9-214.9 2026-09-05

About the Barat Timur Indonesia-1 (BTI-1) Cable System

Overview

The Barat Timur Indonesia-1 (BTI-1) is a 4,500-kilometer submarine cable system designed to enhance domestic connectivity within Indonesia. Scheduled to be ready for service in 2028, the BTI-1 will link six key coastal cities across the Indonesian archipelago. The cable aims to address the growing demand for high-speed internet and reliable data transmission in one of the world's largest archipelagic nations. By connecting major urban and economic hubs, the BTI-1 will play a critical role in strengthening Indonesia's telecommunications infrastructure and supporting its digital transformation initiatives.

Indonesia, with over 17,000 islands, faces unique challenges in ensuring robust connectivity across its vast territory. The BTI-1 cable is a strategic response to these challenges, providing a backbone for improved data flow and fostering economic growth in both eastern and western regions of the country. The project is owned and operated by Super Sistem (PT Super Sistem Data), a prominent Indonesian telecommunications company.

Route and Landings

The BTI-1 cable connects six strategically chosen landing points in Indonesia, ensuring robust coverage across the archipelago. The landing points are:

  • Balikpapan, a key port city in East Kalimantan known for its oil and gas industries.
  • Gresik, located in East Java, a major industrial and trading hub.
  • Makassar, the largest city in Sulawesi and a critical economic center in eastern Indonesia.
  • Manado, a northern Sulawesi city with growing importance in trade and tourism.
  • Nongsa, situated on Batam Island, a key location near Singapore and a hub for technology and data centers.
  • Tanjung Pakis, in West Java, strategically positioned near the capital region.

The route of BTI-1 spans diverse marine environments, crossing the Java Sea, the Makassar Strait, and other critical waterways. These seas are vital for Indonesia's maritime economy, and the cable's path reflects the need to connect key economic and population centers. By linking these cities, the BTI-1 will facilitate improved communication and collaboration across Indonesia's vast geography.

Ownership and History

The BTI-1 cable is owned and operated by Super Sistem (PT Super Sistem Data), an Indonesian company established in 2003. Super Sistem is known for providing data center and network services to a wide range of clients, including government agencies, financial institutions, and private enterprises. The company's extensive experience in the telecommunications sector positions it well to manage the BTI-1 project effectively.

The decision to develop BTI-1 reflects Indonesia's broader efforts to modernize its telecommunications infrastructure. As the demand for digital services continues to grow, particularly in remote and underserved regions, the BTI-1 cable is expected to play a pivotal role in bridging the digital divide. The project aligns with Indonesia's national goals of fostering economic development and improving access to technology in both urban and rural areas.

What Our Measurements Show

Our monitoring of the BTI-1 system includes 21 measured corridors, providing insights into its performance and reliability. The best measured round-trip time (RTT) is 24 milliseconds, while the average RTT across all corridors is 199 milliseconds. These metrics indicate the cable's potential to deliver low-latency connections, which are critical for modern applications such as cloud computing, video conferencing, and real-time data processing.

The BTI-1's performance metrics underscore its capacity to support Indonesia's growing digital economy. By connecting key cities with low-latency links, the cable will enable faster and more reliable communication, benefiting businesses, educational institutions, and government services. These improvements are expected to contribute significantly to Indonesia's digital transformation and economic growth.

What next: Explore Barat Timur Indonesia-1 (BTI-1) on the interactive submarine cable map, browse the full catalog of submarine cables, or follow live network events and real-world internet latency.

Health

Status✓ Normal
RTT353.86 ms / base 361.04 ms
Last checked2026-10-19 15:03

Monitored by our probe network. Open monitoring →

RTT History

Route: #6410 → Tanjung Pakis Measured: 2026-10-19 15:03
353.9 ms
Min Avg Max #
7 days 353.9 357.9 365.9 6
30 days 341.4 361.3 457.0 46
60 days 341.4 360.1 521.6 83

Health Timeline

Sat, Oct 10
View full event log →
Hop Anomaly
4ms → 17ms (4.46×)
16:31
Thu, Oct 1
View full event log →
Hop Anomaly
134ms → 541ms (4.04×)
01:00
Thu, Sep 24
View full event log →
Hop Anomaly
13ms → 126ms (9.72×)
01:30
Sun, Sep 20
View full event log →
Tanjung Pakis
RTT Spike
235ms → 601ms (2.56×)
23:02
Tanjung Pakis
RTT Spike
235ms → 601ms (2.56×)
23:02
Hop Anomaly
5ms → 16ms (3.20×)
20:00
Sun, Sep 6
View full event log →
Hop Anomaly
6ms → 1076ms (170.31×)
07:31
Hop Anomaly
11ms → 104ms (9.81×)
03:33
Sun, Jul 12
View full event log →
Hop Anomaly
44ms → 267ms (6.08×)
11:00
Sat, Jul 11
View full event log →
Hop Anomaly
6ms → 21ms (3.68×)
22:01

FAQ

What is the length of the Barat Timur Indonesia-1 (BTI-1) cable?
The Barat Timur Indonesia-1 (BTI-1) submarine cable is 4,500 km long.
Which countries does Barat Timur Indonesia-1 (BTI-1) connect?
Barat Timur Indonesia-1 (BTI-1) connects 1 country via 6 landing points.
Who owns the Barat Timur Indonesia-1 (BTI-1) cable?
Barat Timur Indonesia-1 (BTI-1) is owned by a consortium including Super Sistem (PT Super Sistem Data).
When was Barat Timur Indonesia-1 (BTI-1) put into service?
The Barat Timur Indonesia-1 (BTI-1) cable entered service in 2028.
Barat Timur Indonesia-1 (BTI-1)
  • Length4,500 km
  • StatusPlanned
  • Ready for Service2028

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