Surabaya, Indonesia

Surabaya, Indonesia is a submarine cable landing point in Indonesia (coordinates -7.2586°, 112.7467°). It serves 2 submarine cable systems, making it a multi-cable landing site in Indonesia's international connectivity infrastructure.

Surabaya is the capital and largest city of East Java province and the second-largest city in Indonesia, after Jakarta. Located on the northeastern corner of Java island, on the Madura Strait, it is one of the earliest port cities in Southeast Asia. According to the National Development Planning Agency, Surabaya is one of the four main central cities of Indonesia, alongside Jakarta, Medan, and Makassar. The city covers a land area of 335.93 km2, and had a population of 2,874,314 within its city limits at the 2020 census. With 3,018,022 people living in the city as of mid 2024 and over 10 million in the extended Surabaya metropolitan area, according to the latest official estimate, Surabaya is the second-largest metropolitan area in Indonesia. Surabaya metropolitan is also ASEAN's 6th largest economy ahead of Hanoi. In 2023, the city's GRP PPP was estimated at US$150.294 billion. Wikipedia

Connected submarine cables

Operators landing at Surabaya, Indonesia

Cables landing at Surabaya, Indonesia are operated by 2 distinct consortium partners and carriers, including Telkom Indonesia, Trans Indonesia Supercorridor. 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 Surabaya, Indonesia, international traffic can reach 1 countries through 2 cable systems. Destinations include Indonesia.

Monitoring status

No monitoring incidents were recorded on cables serving Surabaya, Indonesia 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

• Trans Global Cable System (TGCS) (2026) — Trans Global Cable System (TGCS) is a domestic submarine cable network within Indonesia, connecting 7 coastal and island locations including Balikpapan, Batam, Ketapang, Makassar, Manado, and 2 more. The system provides essential telecommunications infrastructure for communities that would otherwise depend entirely on satellite or microwave links. Read more →
• S-U-B Cable System (2008) — S-U-B Cable System is a submarine cable system operating within Indonesia, with landing points at Banjarmasin, Makassar, Surabaya. It provides dedicated submarine fiber capacity between these locations, supporting telecommunications, internet access, and enterprise connectivity. Read more →

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