APG (Asia Pacific Gateway) submarine cable
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The invisible infrastructure of global connectivity
The Asia Pacific Gateway (APG) is one of the most powerful regional submarine cable systems in Asia. It connects nine countries and territories from Japan via South Korea, China, Taiwan, Hong Kong, Vietnam and Thailand to Malaysia and Singapore. With 54.8 Tbit/s design capacity and six fiber pairs, APG offered 20 times the capacity of its main predecessor in the region when it went live in October 2016. APG is the backbone for intra-Asian data traffic and provides a critical routing alternative for countries such as Vietnam, which were previously regularly affected by cable failures on older systems. A 12-member consortium with Meta, NTT, China Mobile and other Tier 1 carriers is supporting the system.
Route & connection
APG connects Shima (Japan) and Busan (South Korea) with Chongming and Nanhui (China), Toucheng (Taiwan), Tseung Kwan O (Hong Kong), Da Nang (Vietnam), Songkhla (Thailand), Kuantan (Malaysia) and Singapore. In total, the system comprises eleven Kabellande stations in nine countries and territories. The total length is around 10,400 kilometers.
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APG at a glance
What is the APG cable?
The Asia Pacific Gateway (APG) is an around 10,400 kilometer submarine cable that connects nine countries from Japan via China, Taiwan, Hong Kong, Vietnam and Thailand to Singapore. It went live in October 2016, was built by NEC and offers 54.8 Tbit/s across six fiber pairs. APG is a central backbone for intra-Asian data traffic and an important routing alternative in a region prone to earthquakes and outages.
APG fact sheet
| Attribute | Detail |
|---|---|
| Full name | APG (Asia Pacific Gateway) |
| Route | Shima/Japan and Busan/South Korea to Singapore |
| Coverage | 9 countries and territories, 11 landing stations |
| Length | around 10,400 km |
| Live since | October 2016 |
| Design capacity | 54.8 Tbit/s |
| Fiber pairs | 6 |
| Technology | DWDM |
| Manufacturer | NEC (sole supplier) |
| Operator | 12-member consortium (incl. Meta, NTT, China Mobile) |
Submarine cable APG

Technology & capacity
APG was supplied entirely by NEC Corporation and has six fiber pairs with DWDM transmission technology.
- 6 fiber pairs: 54.8 Tbps design capacity (128 × 40 Gbps, upgradeable to 100 Gbps per wavelength)
- NEC as sole supplier: complete end-to-end system responsibility by one supplier
- 20 times the capacity of AAG: massive leap for Vietnam, Thailand and Malaysia
- Critical route redundancy: direct Japan-Southeast Asia connection without risky North Pacific route
Provider Overview
SAVECALL as access to APG
APG is the central backbone system for companies with APAC locations in South East Asia and North Asia, a consortium system with twelve international members that requires direct market knowledge. SAVECALL knows the capacity structure on APG, the available handover points and the relevant carriers offering wholesale capacity on this system. We source directly without a reseller chain and negotiate structures that fit the specific requirements of international corporate networks. We provide full price benchmarking against SJC, SJC2 and other APAC cable options to ensure you always make the best technical and commercial decision.
The result for our customers:
- Direct capacity access to APG without reseller chains
- Negotiation of IRU structures and leased capacity models
- Transparent price benchmarking against all available alternatives
- True route diversity through independent redundancy planning
- Clear SLAs and ongoing capacity management

APG compared with other Asia cables
Several backbone systems compete on the Japan to Singapore axis in the intra-Asian region. Which one fits depends on capacity needs, site mix and redundancy strategy. The comparison shows APG alongside the most important systems in the region.
| Criterion | APG | SJC | SJC2 | ADC |
|---|---|---|---|---|
| Route | Japan/South Korea to Singapore, 9 countries | Japan to Singapore, incl. China, HK, Philippines | Singapore to Japan, incl. Vietnam, Cambodia | China/HK, Japan, Philippines, Singapore, Thailand, Vietnam |
| Design capacity | 54.8 Tbit/s | up to 28 Tbit/s | 144 Tbit/s | over 160 Tbit/s |
| Fiber pairs | 6 | 6 | 8 | 8 |
| Live since | 2016 | 2013 | 2025 | 2024 |
| Strength | established backbone, broad country coverage | earthquake-resistant route, low latency | highest capacity, 400G, Cambodia new | newest system, diverse route |
Vendor-neutral assessment: SAVECALL evaluates these systems independently and benchmarks pricing, latency and routing against all intra-Asian options. For many locations the right answer is a combination, for example APG for the established coverage plus SJC2 for the new 400G capacity. For true resilience we plan at least two physically separate systems.
Related submarine cables and cluster pages
- Earthquake-resistant intra-Asian alternative: SJC submarine cable
- Newest 400G system in the region: SJC2 submarine cable
- Onward to Europe on a single continuous route: AAE-1 (Asia Africa Europe 1)
- All submarine cable options at a glance: Submarine cable sourcing
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Frequently asked questions about the APG cable
APG connects nine countries and territories from Japan and South Korea via China, Taiwan and Hong Kong to Vietnam, Thailand, Malaysia and Singapore. In total the system comprises eleven landing stations. This makes it one of the most important backbones for intra-Asian data traffic.
APG offers a design capacity of 54.8 Tbit/s across six fiber pairs with DWDM technology. At launch in 2016 that was around 20 times the capacity of the predecessor system AAG. APG was built entirely by NEC as sole supplier.
APG is supported by a consortium of twelve international carriers, including Meta, NTT and China Mobile. This consortium structure makes direct capacity access complex, which is why market knowledge and direct partnerships with the members are decisive.
It depends on capacity needs, site mix and redundancy. APG offers an established backbone with broad country coverage, SJC a particularly earthquake-resistant route, and SJC2 the highest capacity with 400G. SAVECALL compares the systems vendor-neutrally and often recommends a combination rather than a single cable.
True resilience only comes from physically separate systems, not from two carriers on the same cable. In the region, APG, SJC, SJC2 and newer systems such as ADC can be combined into diverse routes. SAVECALL checks where your existing connections physically overlap and plans an independent second route.
Companies get capacity on APG through direct contracts with the consortium members, not through reseller chains. SAVECALL negotiates IRU structures and leased capacity models directly, benchmarks transparently against SJC, SJC2 and other APAC options and plans redundancy at the same time. The starting point is a free consultation.



