Long Haul Dark Fiber Networks: Definition, Benefits, and Market Growth
Fiber optic networks, including long haul networks, are very important today. They help data travel long distances between cities, countries, and continents. Because of this, businesses can send information faster and more securely. Today, companies need higher speed and more capacity for cloud services, AI, and big data. As a result, the demand for dark fiber is growing. Dark fiber means unused fiber optic cables that companies can use to build their own private networks. Long haul dark fiber networks connect locations that are far apart. They help move large amounts of data over long distances. According to Polaris Market Research, the global dark fiber market reached USD 6.51 billion in 2024. This shows strong demand for fast and high-capacity connections. What is the definition of a long haul? In telecommunications, long haul refers to fiber optic cables that cover very long distances. These distances can be hundreds or even thousands of kilometers. In simple terms, these networks connect cities, regions, and countries. They can run on land or under the sea using submarine cables. Meanwhile, the market keeps growing. Mordor Intelligence report shows that the dark fiber market could reach USD 9.21 billion in 2026 and grow to USD 17.06 billion by 2031. This growth happens because more companies use cloud services and AI. Most importantly, long haul networks connect large data centers and global network hubs. Companies choose dark fiber when they want full control over how their data moves across long distances. Key benefits of long haul dark fiber networks Long haul dark fiber networks have many clear benefits. It includes: Role of long haul networks in global connectivity Long haul dark fiber networks are the main physical paths for global data traffic. Because of this, Asia Pacific is growing very fast. Fortune Business Insights says Asia Pacific had 42.10% of the global dark fiber market in 2025. This growth comes from more people using the internet and needing faster, more stable connections. In Southeast Asia, large tech companies use private fiber links to connect data centers. This helps them avoid regular internet providers and get more direct and reliable connections. Building your network infrastructure strategy As data use grows around the world, long haul dark fiber is still important. It gives full control, large capacity, and saves money over time. Because of this, many companies choose dark fiber. ARNet runs a big fiber network in Southeast Asia. It works in Malaysia, Indonesia, Singapore, and Thailand. ARNet owns more than 10,000 kilometers of fiber and connects over 60 data centers. ARNet also offers full dark fiber services. These include long-distance links between cities and countries, city fiber, and last-mile fiber to buildings. Many companies trust ARNet because it owns its licenses and fiber network. As a result, ARNet gives stable and steady service across Southeast Asia. As one provider, it can build and manage networks faster and more easily. With live monitoring and strong systems, ARNet delivers 99.99% uptime. Because of this, it is a good choice for digital work, especially for cloud companies that need their own fiber networks. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Modular Data Center Guide – Definition, Cost, and Key Advantages
A modular data center becomes popular because it is fast, flexible, and cheaper than building a traditional data center. As businesses handle more data every day, they need a system that can store and process information quickly. So, instead of waiting for long construction, many companies now choose modular solutions. What is a modular data center? A modular data center is made from pre-built modules. These modules include servers, storage, cooling systems, power supplies, and network equipment. Factory workers build and test the modules, then ship them to the company site for installation. This allows companies to set up a modular center in just a few weeks or months. On the other hand, a traditional data center usually takes 12 to 18 months to build. Businesses can move or expand it as they grow. Modular vs Traditional data centers The main difference is in their construction and expansion. Companies build traditional data centers from scratch, which takes a long time and costs more. Modular data centers use pre-made units that are easier to add or move. Here are the main advantages: How much does a modular data center cost? The cost depends on the type and size of the modules. According to StateTech Magazine, it includes: Schneider Electric reports that a full modular data center usually costs $2–$10 per watt of power. This means companies can start small and buy more capacity later. It helps control spending and avoid extra costs. Why does the network matter? A network is important because a modular data center needs a strong network. First, it helps send data quickly. Second, it makes backups easier. Third, it keeps the system running during problems. Big companies like AWS, Microsoft Azure, Google, and Meta are building more data centers in Southeast Asia. Therefore, they need private, fast networks like dark fiber. Dark fiber provides large capacity and reliable connections, so data can move without slowing down. Building a strong network with ARNet A modular data center is a fast, flexible, and cost-effective solution for businesses. Unlike traditional data centers, these centers are cheaper, faster to build, and easier to expand. With strong networks like ARNet, they can run smoothly and handle large amounts of data. They are a smart choice for companies that want to grow quickly and safely. ARNet has over 10,000 km of fiber. It connects more than 60 data centers in Malaysia, Indonesia, Singapore, and Thailand. ARNet’s network has fiber between cities and countries. It also has fiber inside cities for heavy data use. Last-mile fiber connects straight to customer places. ARNet owns and runs the whole network. It has all needed licenses. This helps keep the network steady with 99.99% uptime. Because of this, many data centers and cloud companies trust ARNet in the region. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
3 Types of Colocation Data Centers That Matter for Your Business
Businesses today make more data than before. Because of this, they need a safe place to keep it. A colocation data center is a place where businesses can put their servers and equipment. This way, they do not need to build their own data center. Many businesses use colocation since it is cheaper and easier. For example, they can rent space in a professional data center instead of making one. In this article, we will explain what a colocation data center is, how it works, and the three main types for different business needs. What is a colocation data center? A colocation data center is a place where businesses rent space for their IT equipment. In addition, the center gives power, cooling, internet, and security. Companies bring their own servers and other hardware. Moreover, using this type of data center can save money. Businesses do not need to build their own data center. Instead, the provider takes care of the building, power backup, and security. At the same time, companies still control their own equipment and data. According to Grand View Research, the global colocation market was USD 69.41 billion in 2024 and is expected to reach USD 165.45 billion by 2030. How colocation data center works? Colocation data centers work by sharing space among multiple companies. For example, each company has its own space. Also, the center gives power, cooling, and other things to run the servers. In addition, it has backup generators to keep power on. Meanwhile, cooling systems stop servers from getting too hot. Moreover, security includes cameras, locked doors, and staff. Then, the servers connect to the internet using many networks. As a result, the colocation data center takes care of all these things. Therefore, companies get safe and reliable service. Additionally, staff watch the center all the time and fix problems fast. Types of colocation data center Different businesses need different space and services. Colocation data centers have three main types. Each type is for different business sizes and needs. Each type gives different benefits. The benefits depend on the size of the business, money, and technical needs. Here are the details of each type. Choosing the right colocation data center type depends on how much equipment you have. It also depends on your growth plans and your budget limits. Building better connectivity for your data center Colocation data centers need fast and strong connections. They use fiber optic cables to move data quickly. These cables link data centers and connect them to the internet. Strong fiber networks reduce delays and give better service. To meet this need, ARNet provides dark fiber solutions in Southeast Asia. Dark fiber is fiber that companies can use by themselves. ARNet has over 10,000 kilometers of fiber and connects 60 data centers in Malaysia, Indonesia, Singapore, and Thailand. This helps hyperscalers and internet companies connect their facilities. We own and run all of the networks. We do not rely on other companies. This helps us to give you fast setup, steady service, and over 99.99% uptime. Our solutions also can help you to monitor the network to fix problems early. Because of this, businesses using a colocation data center get one provider managing all connections, making it simple and reliable. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
IoT Connectivity Guide: 4 Types Every Business Should Understand
The world is getting more connected every day. These connected devices help people work more easily and live better. IoT connectivity connects devices to the internet and to each other. Connected devices can share information and work on their own. People and companies use these devices every day. The State of IoT 2024 report says there were about 18.8 billion IoT devices connected around the world by the end of 2024. This number keeps going up as more industries use smart devices. Knowing the types of IoT connections helps businesses choose what works best for them. What is IoT connectivity? IoT connectivity is a way to connect smart devices to a network and the internet. With this connection, devices can send and receive data by themselves. Because of this, they do not need people to control them all the time. Usually, the connection uses Wi-Fi, mobile networks, or fiber optic cables. This is why IoT connectivity is important for smart systems. In a smart factory, machines and sensors are connected to a control system. Then, they share real-time data about work progress, product quality, and machine condition. This helps companies watch their operations and make quicker decisions. For IoT to work well, a strong and reliable network is needed. Here, fiber optic networks give fast and stable connections. As more devices are added, fiber networks become important to send large amounts of data to data centers. The 4 types of IoT The IoT market has different categories based on how and where the technology is used. Each type serves specific industries and purposes. Understanding IoT connectivity is important for all these types because it decides how well devices and systems work together. Here are the four main types: Consumer IoT (CIoT) People at home or in their daily life are mostly using this IoT type using smart devices. These devices connect to the internet. Examples include smart speakers, fitness trackers, smart thermostats, and security cameras. Thus, Transforma insights shows that this type makes up about 60% of all IoT devices. Commercial IoT Many businesses are using this IoT. For example, stores use connected systems to track products. In addition, hotels use smart systems to control room temperature and lighting. At the same time, restaurants use sensors to monitor food storage. As a result, these technologies help businesses work more efficiently and reduce costs. Industrial IoT (IIoT) Many factories and warehouses are using this IoT type. In many cases, machines are connected to watch performance and find problems early. As a result, it helps reduce breakdowns and improve product quality. Because of these benefits, the update from IoT analytics shows that the use of this technology is growing fast. Infrastructure IoT Infrastructure IoT uses simple smart devices to help cities run better. In everyday operations, these devices connect to the internet and share data. For example, power systems use them to check electricity and find problems early. At the same time, water systems use sensors to detect leaks and reduce water waste. Meanwhile, traffic systems rely on smart lights and sensors to keep traffic moving smoothly. Because of this, all of these systems need a stable internet connection. As a result, cities work better and life becomes easier for people. Moving forward with smart connectivity IoT connectivity is growing very fast as more devices connect every day. As a result, businesses need strong and dependable networks. In practice, IoT systems rely on connections that are both fast and stable. In this context, dark fiber plays a key role by delivering high-speed and reliable connectivity for large-scale IoT networks. To support this demand, ARNet provides dark fiber infrastructure across Southeast Asia. Today, we operate more than 10,000 kilometers of fiber across Thailand, Malaysia, Singapore, and Indonesia. Through this footprint, our network connects over 60 data centers and supports major technology companies and hyperscalers. At the same time, owning and managing our own network enables faster deployment and consistent service quality. With continuous monitoring, we deliver over 99.99% uptime. This makes it easier for your business to adopt, scale, and future-proof IoT deployments. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Data Center Infrastructure: 3 Essential Components You Need to Know
Businesses use digital services every day. These services help them work and serve customers. They also need systems to store data and run applications. These systems must work all the time. Because of this, data center infrastructure is very important. It helps keep systems running and data safe and available. When businesses understand data center infrastructure, they can choose better technology. This article explains the basic parts that help a data center work well. What is data center infrastructure? Data center infrastructure is all the tools and systems used to run a data facility. In simple words, it includes what is needed to store, process, and protect data. These facilities support technology that businesses use every day. Because of this, they need careful planning. This is because the systems must run all the time without stopping. When a system goes down, companies can lose money. In 2024, a report by the Ponemon Institute showed that downtime cost about $9,000 per minute. For this reason, reliability is very important. What are the three main components of a data center infrastructure The three main parts of data center infrastructure are network infrastructure, storage infrastructure, and computing resources. Together, they help the data center run smoothly. Each part has a specific job. At the same time, they must work together to support business operations. 1. Network infrastructure Network infrastructure helps systems talk to each other. It uses routers, switches, cables, and firewalls to send data fast and safely. Without it, systems cannot share data and apps cannot work well. 2. Storage infrastructure Storage infrastructure keeps data safe and easy to access. It uses tools like hard drives, SSDs, networks, and backup systems. The same data is saved in more than one place, so it is still available if one system fails. It also works with data centers to make sure data is always ready. 3. Computing resources Computing resources help computers work and run programs. They include servers and processors. More power and virtualization let computers do tasks faster, run more programs, and stay reliable. Building tomorrow’s digital foundation As data center infrastructure grows, dark fiber becomes more important. Dark fiber is fiber optic cable that is not used until a company turns it on. When a company uses it, they control how data moves on the network. This helps businesses add more bandwidth when needed. Dark fiber also gives flexibility and security. Companies can manage capacity, keep data private, and upgrade equipment without changing the fiber. This makes it easy to expand networks. Based on research from Mordor Intelligence, the demand for dark fiber is growing in Southeast Asia. Its market in Asia Pacific may grow 12.5% each year until 2029. ARNet provides dark fiber for modern digital infrastructure. We help large businesses and hyperscalers in Southeast Asia, including Malaysia, Indonesia, Singapore, and Thailand. Our services include long haul fiber, metro fiber, and last mile fiber. These connections link facilities to key network exchange points. Our networks give low latency and high bandwidth, which are very important for data centers. Businesses choose ARNet because we build strong fiber networks. We work with clients to make solutions that help them grow. ARNet dark fiber gives companies a flexible and scalable network for long-term success. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
What Is a Static IP Address? 3 Important Facts Explained
Today, businesses depend on the internet to work well. Because of this, companies must make many network choices. They choose speed, security, and connection type. One important choice is the type of IP address. In many cases, businesses choose a static IP address. This choice affects daily work. It affects servers and remote access. Because of that, it is important to understand static IP addresses. By learning this, you can improve network performance. At the same time, you can avoid extra costs. As a result, your business can use the internet more effectively. What is a Static IP Address? A static IP address is a fixed number given to a device on a network. Your internet service provider sets this number and keeps it the same. As a result, the address does not change, even when the device connects or disconnects many times. For example, web servers use static IP addresses so users can always find the website in the same place. In the same way, email services use them to keep a good sender reputation and improve email delivery. Also, remote desktop tools connect faster because the address is always known. According to a 2024 Cisco report, the number of devices online keeps growing. Because of this, this IP makes it easier to manage important networks. What is the Difference Between a Static IP Address and a Fixed IP Address? A static IP address and a fixed IP address mean the same thing. In fact, there is no difference between them. Both terms describe an IP address that never changes. Here are the key points: These terms are only different words. However, the real difference is between static and dynamic IP addresses. Dynamic IP addresses change often. They change each time a device connects. In contrast, static IP addresses stay the same. You can use both terms for the same purpose. How to Get a Static IP Address? There are several ways to get a static IP address. You need to choose the best option for your needs. Below are common methods: Each option has a different cost. For example, business plans offer better stability. On the other hand, local setup works well for private networks. Therefore, you should choose based on your business needs. Conclusion Static IP addresses give devices a stable identity. Because of this, servers stay easy to reach. Also, remote connections work faster. As a result, online services stay reliable. In the long run, this helps businesses operate smoothly. However, static IP addresses need a strong network to work well. If the network is weak, performance will drop. Because of that, the base infrastructure is very important. Dark fiber networks provide this strong foundation. They use dedicated fiber cables. This allows fast and stable data flow. As a result, it can be performed at their best. ARNet provides dark fiber solutions across Southeast Asia. The company supports hyperscalers and major industry players in Malaysia, Indonesia, Singapore, and Thailand. In particular, ARNet builds and maintains physical fiber networks. These networks connect data centers, cloud platforms, and large enterprises. In addition, the infrastructure supports very high bandwidth needs. Therefore, ARNet helps hyperscalers and leading companies run critical systems with speed, stability, and reliability across the region. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
4 Things Business Owners Must Know About Dark Fiber Network
Businesses today need fast and reliable internet to run their work. Because more companies use cloud systems, video calls, and online apps, they need to send data faster. This makes many businesses look for better dark fiber network solutions that can handle a lot of data. A dark fiber network is a good option because it gives businesses full control over their internet connection. Many companies choose it because it is secure and easy to expand when their needs grow. By understanding how dark fiber works, businesses can choose the right network for their needs. What is dark fiber networking? Dark fiber networking refers to unused optical fiber cables that have been installed but are not currently carrying data signals. Specifically, these fiber optic cables are called “dark” because no light passes through them to transmit information. Telecommunication companies and network providers typically install more fiber than they need during initial construction to prepare for future demand. As a result, organizations can lease or purchase these unused fibers to build their own private networks. This approach gives companies direct control over their bandwidth capacity and network management. In fact, Grand View Research shows that the global dark fiber network market was valued at USD 6.90 billion in 2025 and shows strong growth potential as more businesses recognize its benefits. Key benefits of dark fiber network infrastructure A dark fiber network gives many benefits compared to regular internet connections. Businesses that use dark fiber get these benefits: What is the difference between dark fiber and regular fiber? The main difference is who owns and controls the network. Each option is good for different business needs and budgets. Here is a simple explanation: A. Dark fiber With dark fiber, a company rents or buys the fiber cable. The company sets up and runs its own network equipment. This option needs skilled staff and more setup cost. However, the company has full control of speed and data size. It can change or upgrade equipment at any time. Dark fiber is good for companies that use a lot of data and need strong safety. B. Regular fiber With regular fiber, a company buys internet service from a provider. The provider owns and runs the network and equipment. The company pays a monthly fee based on speed. This option is easy to use and cheaper at the start. However, the company depends on the provider for speed changes. Regular fiber is good for companies that need basic and steady internet. Who owns the most dark fiber? ARNet owns and operates a reliable dark fiber network across Malaysia, Singapore, Indonesia, and Thailand. It is built to support modern businesses with secure, high-speed, and scalable connectivity. Many major companies and hyperscalers trust ARNet to run their important business operations. In addition, ARNet offers custom connectivity solutions using its dark fiber network. For this reason, these solutions are suitable for businesses that need dedicated bandwidth for data centers, cloud services, and business applications. At the same time, the ARNet technical team works closely with clients to build a network that matches their needs. This way, the network works well today and stays ready for future use. On top of that, ARNet supports businesses from the beginning to the end of the project. Throughout the process, the team helps with planning, setup, installation, and maintenance. When compared to shared internet services, ARNet’s dark fiber solution is more stable and more secure. Because of these benefits, businesses get clear pricing, better security, and full control of their network. This makes ARNet a trusted partner for your business. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Understanding Local IP Addresses in Your Network Infrastructure
Every device you connect to your home or office network needs an address. In fact, this address works similar to a house address in your neighborhood. Specifically, it helps devices find each other and share information. To accomplish this, your router assigns a local IP address to identify each device properly. More specifically, a special number gets assigned to each device by your router. As a result, this number helps your router know which device is which. When you understand these addresses, you can manage your network better and fix problems faster. What is my local IP address? Your local IP address is a private number that belongs only to your device inside your network. For example, this number usually starts with 192.168, 10.0, or 172.16. Your router gives this number to your device so it can send the right information to you. To find it, you can see this address by looking at your device settings or using simple commands on your computer. However, this address is different from your public IP address. In contrast, your public IP address shows your whole network to the internet. How do I set my local IP? You can set your local IP address in two ways. The automatic method works simply: your router gives out addresses to all your devices by itself. On the other hand, the manual method allows you to choose the address yourself. To pick your own address, open your network settings on your device. From there, look for the option that says static or manual IP. Once you find it, type in the address you want to use. In addition, make sure your address fits with your router’s number range. Also, check that no other device uses the same address. Does everyone in a house have the same IP? No, each device gets its own local IP address. For instance, your phone, computer, tablet, and TV all have different numbers. However, all your devices share one public IP address for the internet. To manage this, your router remembers which device asked for which information. Then it sends the correct information to each device using their unique address. Key benefits of understanding local IP addresses Knowing about these addresses brings many practical benefits to your daily network use. Here are the main advantages you get: Conclusion More people and businesses need better network connections now. According to Grand View Research, the dark fiber network market was worth 6.90 billion dollars in 2025. This number will grow to 21.88 billion dollars by 2033. This growth shows that people want faster and safer internet connections. Both homes and businesses need strong network systems. Every device needs proper local IP address setup to work correctly. Learning about these addresses helps you take care of your network better. You can quickly fix connection problems, strengthen your network security, and organize all your devices in a clear way. Businesses that want to build strong networks need good connectivity solutions. ARNet offers dark fiber solutions that create the base for reliable networks. Dark fiber gives businesses full control over their connections. It provides the speed and growth space needed for modern business needs. The company provides dedicated fiber optic lines that give you better performance, stronger security, and unlimited speed options. ARNet is the right choice for your network infrastructure needs. With ARNet’s dark fiber solutions, your business gets complete control over your network setup. You can adjust your infrastructure based on what you need. This control extends to managing every aspect of your connectivity, including how you assign and organize your local IP address structure. Choosing quality dark fiber infrastructure today keeps your network strong for many years ahead. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Understanding Network Connectivity in Dark Fiber Infrastructure
Network connectivity is how computers and devices connect to share information. For example, a global telecom organization reports that 68% of people around the world (5.5 billion people) use the internet in 2024. This shows how important good connections are for businesses and people today. Companies need fast and reliable ways to connect their systems. That’s where dark fiber networks come in. Dark fiber networks give businesses their own private fiber cables. This helps them control their connection speed and quality. Therefore, learning about network connectivity helps businesses pick the right setup for their needs. What is the meaning of network connectivity? Network connectivity means devices can connect and talk to each other through a network. This lets information move from one place to another. You use network connectivity when you browse websites, send emails, make video calls, or access files stored online. Good network connectivity means your data moves fast and arrives safely. How well your network works depends on a few things. These include how much data can travel at once, how fast it travels, and how reliable your cables and equipment are. For this reason, businesses need steady connections to keep their work running smoothly. They use these connections every day for customer service, storing data, and running their operations. What are the different types of network connectivity? Network connectivity comes in two main types. These are physical connections and wireless connections. Each type serves different needs depending on speed, stability, and use case. Below is the explanation of each type. Physical connections Physical connections use actual cables to link devices together. These cables can be made of copper wire or special glass fibers. Specifically, fiber optic cables send information as light signals through thin glass threads. As a result, these cables can carry lots of data very quickly over long distances. In this case, dark fiber means unused fiber cables that a company can rent or buy for their own private use. Wireless connections Wireless connections send data through the air without any cables. Instead, they use invisible signals similar to radio waves. For example, common types are Wi-Fi in your office, cell phone networks, and satellite signals. In fact, according to the GSMA State of Mobile Internet Connectivity 2024 report, 4.6 billion people use mobile internet on their phones. Wireless is convenient because you can move around freely. However, cable connections usually work faster and more reliably. What can cause network connectivity issues? Unfortunately, several problems can stop your network from working properly. These include DNS server downtime, incorrect DNS configurations, and network security settings blocking DNS traffic. Below is the explanation of each problem. DNS server downtime DNS servers work like phone books for the internet. They change website names into number codes that computers understand. DNS server downtime happens when these servers stop working. For instance, this can happen during repairs, attacks from hackers, or technical breakdowns. In 2025, several major DNS outages affected popular services, causing many websites to stop working. As a result, companies using only one DNS provider face bigger problems during these failures. Incorrect DNS configurations Wrong DNS settings stop devices from finding websites and online services. These mistakes happen when someone enters the wrong server addresses or sets up the system incorrectly. Small errors in these settings can make it hard or impossible for users to reach the websites they need. Network security settings blocking DNS traffic Security systems protect networks from threats and attacks. However, sometimes these security tools block good traffic by mistake. For example, strict security rules or old protection settings can stop DNS requests from going through. As a result, this creates problems for people trying to access websites and online tools. Securing your network infrastructure Strong network connectivity is necessary for business success today. Companies must pick systems that work reliably and can grow with their needs. Dark fiber gives businesses full control over how their network performs. These unused fiber optic cables can run on land, underwater, or above ground, and each type needs different protection based on whether it connects nearby areas or covers long distances. In fact, the global dark fiber network market reached USD 6.25 billion in 2024. This shows that more and more companies want their own private fiber cables. For this reason, ARNet provides dark fiber solutions for companies that need better network connectivity. The company gives businesses their own private fiber cables that work faster and more reliably. As a result, ARNet’s services help companies avoid the connection problems that happen with shared networks. Businesses should pick ARNet because the company offers reliable systems that grow as your company grows. ARNet’s private fiber networks remove speed limits and provide better security than regular shared services. This means your company can set up the network exactly how you need it. You can keep strong performance for all your important business activities. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet
Understanding Submarine Cable Map and Dark Fiber Infrastructure for Global Connectivity
The internet around the world runs through physical cables placed under the ocean. These submarine cables carry more than 95% of global data between countries. According to Grand View Research, the submarine cable market reached USD 31.70 billion in 2024. This market keeps growing because more people need fast and stable internet. A submarine cable map shows where these cables connect countries and continents. Dark fiber works together with submarine cables to support strong network systems. Dark fiber means unused fiber optic cables that companies can rent or own for their own networks. Many businesses use a submarine cable map to see where cables land and plan their connections. Because of this, understanding how submarine cables and dark fiber work together helps companies choose the right internet setup. How deep are submarine cables buried? Submarine cables are buried at different depths based on where they are located. A submarine cable map typically shows the routes of these cables across the ocean floor. In shallow waters near the coast, crews bury cables 1 meter deep into the ocean floor. This protects them from ship anchors and fishing nets. According to KIS-ORCA, special underwater plows dig narrow trenches to bury the cables. However, deep ocean areas do not need cable burial. Instead, cables in deep water just sit on the ocean floor. This is because fewer ships and fishing boats go to those deep areas. Looking at any submarine cable map, you can see that cables crossing deep ocean trenches sit at depths over 8,000 feet below sea level. Meanwhile, companies use water jets and underwater robots to bury cables in areas up to 2,000 meters deep. What happens when undersea internet cables are cut? Damaged submarine cables quickly stop internet services. Countries lose their internet connection until workers fix the cables. A submarine cable map helps network operators see which cables are affected and plan alternate routes during outages. For example, Internet Society reported that in March 2024, four cables were damaged off the coast of West Africa. This affected many countries at the same time. Fixing broken cables needs special ships and trained workers. First, workers pull the broken cable from the ocean floor onto the repair ship. Then, they connect new cable pieces to fix the break. Most simple repairs take 5 to 15 days. However, harder repairs in dangerous areas can take many months. For instance, Recorded Future found that cable breaks in the Red Sea in February 2024 took almost five months to fix. This was because of permit delays and safety concerns in that region. Why do we need undersea cables with satellites available? There are many reasons why submarine cables are still very important today: Satellites are still useful in places where cables cannot reach. Remote islands and far areas often use satellites because it is hard to install cables there. But according to TeleGeography, satellites carry less than 0.37% of the world’s data. Most busy coastal areas use submarine cables instead. MarketsandMarkets also says the submarine cable market reached USD 18.2 billion in 2024. It is expected to grow to USD 29.7 billion by 2029. Big companies like Google and Meta continue to build new submarine cables. Today, there are 559 active submarine cable systems around the world. Building reliable network infrastructure Submarine cables are the main foundation of global internet connectivity. Businesses need reliable fiber infrastructure to send and receive their data. Dark fiber solutions give dedicated bandwidth without sharing with other users. This means companies can grow their network speed as they need more data capacity. Companies can check the submarine cable map to see how their location connects to global networks. ARNet provides dark fiber solutions that connect businesses to important network infrastructure. Our dark fiber services let companies control their own network capacity and speed. ARNet’s infrastructure links to major submarine cable landing stations and data centers across the region. We help businesses understand the submarine cable map and connect to the right landing points for their needs. If your business needs connections between countries in Southeast Asia using sea cables, ARNet can help. We help businesses understand the submarine cable map and connect to the right landing points for their needs. Choose ARNet because we offer dedicated fiber solutions with guaranteed bandwidth and low delay times. Our network infrastructure helps businesses that need secure and reliable internet for their work. ARNet’s dark fiber services remove the speed limits that shared networks create. This gives your company the performance needed for applications that use lots of data. About the Author Nabila Choirunnisa, Digital Marketing Executive at ARNet