Setting Up Home Internet in Japan: Choosing Internet Service Provider

Are you living in Japan or planning to move there soon? Getting connected to the internet in Japan can be challenging for foreigners in Japan, especially with language barriers and unique telecommunications systems. This comprehensive guide will help you navigate choosing an internet service provider, handling applications, setting up your home wifi, and troubleshooting common issues to ensure you stay connected across Japan.

Understanding Internet Service Providers in Japan: High-Speed Internet Options

When setting up internet at home in Japan, you'll need to choose between several connection types. The internet in Japan offers various options to meet different needs and living situations.

Types of Internet Connections: Fiber Optic, Broadband, and Wi-Fi Networks

Fiber optic internet (光回線 or "hikari") is the most reliable high-speed internet connection type in Japan. Hikari fiber-optic networks provide speeds up to 1 Gbps or higher, making them perfect for streaming, gaming, and video calls. Companies like NTT East and NTT in western Japan dominate the fiber optic line market. Installation typically takes 1-2 weeks from application and requires landlord permission for those renting, which can be a hurdle for foreigners in Japan.

Cable TV lines combine television and internet service, often with bundle discounts. While traditionally slower than fiber internet, technological advancements have significantly improved their speeds. These fixed-line internet options may already be available in some apartment buildings, potentially reducing waiting time and installation requirements for your home internet connection.

Mobile wifi options, including pocket wifi and home wireless routers using cellular networks from providers like Softbank, Docomo, and other ISPs, offer flexibility without physical installation. These options are ideal if you don't want to commit to long contracts or need to use the internet anywhere in Japan. Pocket wifi and mobile wifi rentals from companies like Ninja WiFi provide internet access in Japan with options for unlimited data, though they typically offer lower speeds and may have data caps during peak hours.

Factors to Consider When Choosing an Internet Service Provider in Japan

• Availability should be your first consideration when selecting an internet provider in Japan, as not all services are available across Japan. Urban areas have more options, while rural locations might have limited choices. Before deciding on a particular ISP, check their service map or use their online availability tool to confirm they operate in your neighborhood.
• Cost structures vary significantly between internet service providers and plans, with prices ranging from around ¥3,000 to ¥6,000 per month. Many providers offer set discounts (セット割) when bundled with mobile phone plans from carriers like Softbank, Docomo, or KDDI, which can reduce your monthly payment by up to ¥1,650 yen. Be aware of installation fees ranging from ¥22,000 to ¥44,000, though many companies offer promotions that waive these costs with longer contracts.
• Contract terms typically range from 1-3 years, with early termination fees if you cancel the contract before the period ends. This is particularly important for foreigners living in Japan short-term. Some providers offer shorter contracts, but these generally come at a premium monthly rate.

Step-by-Step Process for Getting Internet in Japan

Securing fast internet in your Japanese home involves a structured process. Here's how to get connected:

Step 1: Research and Select a Provider (1-2 Weeks)

Research available internet providers in Japan, comparing their download speeds, prices, and contract terms. Popular options include Softbank Hikari, NURO Hikari, Docomo Hikari, and AU Hikari (KDDI), each with different coverage areas and pricing structures. Consider your actual internet usage patterns when selecting your plan speed.

Many Japanese apartments come with pre-installed internet options, so ask your neighbors or check with your landlord before starting the application process. If you're eligible for mobile carrier discounts (セット割), select a line provider that partners with your current mobile service to maximize savings.

Step 2: Prepare Documentation (1-3 Days)

Gather all required documentation before beginning the application process. Essential documents typically include personal identification (residence card), proof of address, and payment information. Foreign residents should ensure their residence cards are current and accurately reflect their address.

Prepare a Japanese phone number that can receive calls from the provider. If your Japanese language skills are limited, arrange for translation assistance, as most internet service providers primarily communicate in Japanese. Some companies like Sakura Fiber Internet and GTN Mobile offer English support for foreigners in Japan.

Confirm you have permission for installation from your landlord if you're renting, as many fiber optic installations require minor construction work.

Step 3: Apply for Service (30-60 Minutes)

Submit your application through the provider's website, by phone, or in person at a retail location. Online applications are convenient, but in-person applications might be easier for those with limited Japanese ability. When applying, select your desired plan, installation date preferences, and any additional options like wifi router rental or security services.

During the application, provide your personal information, address details, and payment method. Most ISPs require a credit card or Japanese bank account for monthly payments. Be prepared to select from available installation dates, typically offered on weekdays, with some providers offering weekend installations for an additional fee.

After submitting your application, you'll receive confirmation with your application number and next steps. Keep this information accessible, as you may need it if you have questions about your home internet connection.

Step 4: Installation and Setup (2-4 Hours)

On installation day, ensure someone is home during the appointment window to meet the technician. The installation process typically takes 1-3 hours depending on the complexity and whether your building already has the necessary infrastructure. Technicians will install connection points, set up the necessary hardware, and may help with basic wi-fi configuration.

During installation, the technician will need access to both the interior and exterior of your home. For apartment dwellers, technicians may need to access common areas or communication closets. Most technicians speak only Japanese, so prepare basic communication methods if you anticipate language barriers.

After physical installation is complete, the technician will conduct a speed test to confirm proper functioning and provide basic setup information for your router and home network.

Step 5: Configure Your Home Network (1-2 Hours)

Once the technician departs, properly configure your wifi router for security and optimal performance. Connect to your wireless router using the provided information and change the default passwords to strong, unique alternatives to prevent unauthorized access to your home wifi.

Configure security settings according to best practices, including enabling WPA2/AES or WPA3 encryption. Consider enabling MAC address filtering to restrict which devices can connect to your network, and set up a guest network if you frequently have visitors who need to use the internet.

Position your wifi router strategically for optimal coverage – centrally located, elevated, and away from physical obstructions and electronic interference. If you have a larger home or one with thick concrete walls common in Japanese construction, consider adding wi-fi hotspots or mesh systems to ensure complete coverage.

Required Documents and Preparation

Proper documentation is essential for a smooth internet application process in Japan.

Identification Requirements

For foreigners residing in Japan, a valid residence card (在留カード) serves as the primary identification document required by all internet providers. Ensure your residence card is current and the address listed matches your actual residence.

Alternative identification options include your passport combined with proof of address, or a MyNumber card. Some providers may require multiple forms of identification for foreign applicants, so having both your residence card and passport available during the application process is advisable.

For payment verification, most providers require a valid credit card or Japanese bank account information. If you're newly arrived in Japan, some providers offer alternative payment methods such as convenience store payments, though these may incur additional fees.

Address Verification

Proof of your current address is crucial when applying for internet service in Japan. Your residence card with an updated address is usually sufficient, but some companies may request additional documentation such as utility bills, a rental contract, or official mail addressed to you.

If you've recently moved, bring your rental agreement to demonstrate your right to request services at the property. For apartment dwellers, knowing your building's exact specifications can prevent installation complications. Many newer Japanese apartments have built-in fiber optic connections (MDF rooms), while older buildings might require more extensive installation work.

Recommendations for Different Scenarios

Different living situations call for tailored internet solutions in Japan. Here are targeted recommendations:

Best Options for Temporary Residents (Less than 1 Year)

For short-term residents like exchange students or temporary workers, mobile broadband solutions offer the flexibility needed without long-term obligations. Pocket wifi devices from providers like Y!Mobile, GTN Mobile, or UQ WiMAX typically offer month-to-month rental options. These devices provide immediate connectivity without installation and can be returned when leaving Japan.

Another option is taking over existing internet from previous tenants if your apartment has pre-installed service. This eliminates installation fees and waiting periods. For those in share houses or international dormitories, communal wifi is often already included in your housing fees.

Services like Sakura Mobile offer home wifi services that require no installation, providing quick setup and flexibility with free delivery of your sim card or pocket wifi device.

Best Options for Long-term Residents

Long-term residents should prioritize fiber optic connections for their superior speed and reliability. NURO Hikari offers exceptional value with maximum download speeds up to 2Gbps at competitive rates around ¥5,200 monthly, though availability is limited to certain regions.

For Softbank or Y!mobile mobile users, Softbank Hikari provides excellent integration with discounts reducing the effective monthly cost significantly. Docomo users should consider Docomo Hikari, while KDDI (AU) users benefit most from connecting with services like AU Hikari for similar combination discounts.

For families or heavy internet users requiring consistent high-speed internet across multiple devices, consider premium services that offer symmetric upload and download speeds. While standard fiber connections typically offer 1Gbps download but slower upload speeds, services like NURO Hikari provide balanced performance ideal for households where multiple people need to stay connected to the internet simultaneously.

Best Options Based on Location

Urban dwellers in Tokyo, Osaka, Nagoya, and other major cities benefit from having the widest selection of internet service providers and often the best promotional offers due to intense competition. In these areas, consider newer entrants to the market like NURO Hikari or Sakura Fiber Internet provides excellent options with English support.

Suburban residents typically have access to major national providers like NTT, Softbank, AU, and Docomo. Local cable companies sometimes offer competitive internet packages that include television services, which might provide better value depending on your entertainment needs.

Rural residents face more limited options, with some remote areas served only by NTT's fiber network (Flet's) or satellite internet solutions. In areas where fiber isn't available, mobile broadband might be your only option to access the internet in Japan, though performance varies based on cell tower proximity.

Service Provider Comparison

1. Sakura Fiber Internet

   Overview: Sakura Fiber Internet provides full English support and flexible contract terms, including options as short as one month for foreigners in Japan who don't want to commit to long-term contracts.

   Monthly Fee: ¥7,128 (includes tax)

   Initial Setup Fee: Ranges from ¥7,700 to ¥29,700, with potential discounts available

   Installation Time: Approximately 1 to 2 weeks

   English Support: Comprehensive support available for those who need to get connected in Japan

2. SpinNet

   Overview: SpinNet provides high-speed internet with some English support

   Monthly Fee: ¥5,500 to ¥14,300 (includes tax)

   Initial Setup Fee: Between ¥5,500 and ¥27,280

   Installation Time: Typically 1 to 3 weeks

   English Support: Limited support available

3. Asahi Net

   Overview: Asahi Net offers reliable service with some English support, suitable for users comfortable with basic Japanese

   Monthly Fee: ¥6,358 (includes tax)

   Initial Setup Fee: ¥20,680

   Installation Time: Approximately 2 to 4 weeks

   English Support: Basic support available

4. SoftBank Hikari

   Overview: SoftBank Hikari is ideal for SoftBank mobile users, offering bundled discounts

   Monthly Fee: ¥7,322 (includes tax)

   Initial Setup Fee: Ranges from ¥5,500 to ¥29,700

   Installation Time: Generally 1 to 3 weeks

   English Support: Primarily Japanese; limited English support may be available

5. NURO Hikari

   Overview: NURO Hikari offers high-speed internet with speeds up to 2 Gbps, suitable for heavy internet users

   Monthly Fee: ¥5,217 (includes tax)

   Initial Setup Fee: ¥47,300

   Installation Time: Approximately 2 to 4 weeks, depending on location

   English Support: Service is primarily in Japanese

6. Home WiFi Services (e.g., Sakura Mobile)

   Overview: Home WiFi services like those offered by Sakura Mobile require no installation, providing quick setup and flexibility

   Monthly Fee: Varies; for example, Sakura Mobile offers plans starting at ¥4,950 (includes tax)

   Initial Setup Fee: ¥3,300 (includes tax)

   Installation Time: Service can be activated within a few days with free delivery

   English Support: Full support available

Potential Obstacles and Solutions

Setting up internet in Japan comes with unique challenges, but understanding them in advance allows you to prepare effective solutions.

Navigating Language Barriers

Language barriers represent one of the most significant obstacles for non-Japanese speakers attempting to set up internet services. Most provider websites, customer service lines, and installation technicians operate primarily in Japanese. To overcome this challenge, utilize providers that offer English support services – Sakura Fiber Internet, GTN, and some Softbank services provide English assistance.

When English support isn't available, leverage translation apps like Google Translate or DeepL. Community resources can also provide valuable assistance with language challenges. Many cities have international associations that offer free or low-cost translation assistance for essential services.

Dealing with Building and Landlord Restrictions

Many Japanese buildings have restrictions that can complicate internet installation. Some landlords prohibit new cable installation or drilling that might be necessary for fiber optic service, while others require specific providers. Before signing a lease, explicitly ask about internet availability and restrictions.

When faced with installation restrictions, explore alternate connection methods like mobile wifi or pocket wifi that don't require physical modifications to the property. For shared buildings, inquire whether common area installations might be possible.

Accessing Free Wi-Fi Options

While setting up your home internet connection, you may need temporary access to the internet. Japan offers various free wi-fi networks and hotspots:

• Japan Wi-Fi Auto-Connect: A free app that connects you to thousands of free wi-fi hotspots across Japan
• Major train stations and public facilities: Many offer free wifi for limited periods
• Coffee shops and restaurants: Chains like Starbucks provide free wi-fi for customers

Remember that public free wifi in Japan often requires registration or has time limits, so these are best for temporary use rather than as your primary internet access in Japan.

By following this guide, you'll be able to navigate the complexities of getting connected to the internet in Japan, whether you're looking for high-speed fiber internet or more flexible mobile wifi options. With the right preparation and knowledge, you can ensure you stay connected in Japan throughout your time in the country.