Internet Providers in Japan: A Handy Guide (Updated 2026)

Tired of slow-to-load streaming? Need reliable Wi-Fi for those hard-to-schedule calls back home? Here's what to know about Internet providers in Japan. 

Pocket Wi-Fi is a standard option for visitors to Japan, with plenty of advantages for those who are here short-term or who spend limited time at home.

However, if you are here for over a year or you work from home for large portions of the day or week—you might want to consider something other than your phone or pocket Wi-Fi's data plan.

How Japan's internet infrastructure works

Before comparing providers, it helps to understand one thing that makes Japan's internet setup different from many other countries: the physical fiber cable and the internet service are typically provided by two separate companies.

The physical backbone of Japan's home internet is a fiber-optic network called FLET'S Hikari, operated by NTT (Nippon Telegraph and Telephone Corporation). NTT is split into two regional divisions: NTT East for eastern Japan and NTT West for the rest. Their cables run to the overwhelming majority of homes and apartments across the country.

Most of the providers you'll encounter don't own their own fiber cables. They lease access to NTT's network and bundle it with their own internet service into a single plan. Au Hikari and Nuro Hikari are the main exceptions, as both operate their own independent fiber infrastructure.

This means that when you sign up for a bundled plan, your monthly bill covers both the line access and the internet service in one payment. If you were to contract with NTT directly instead, you would need to sign and pay for both separately. This is why the bundled plans covered in this article are almost always the simpler choice.

Before listing the top Internet providers in Japan, here are some basics and tips to understand first:

Tip 1. Choose a bundled service.

In Japan, there are two separate contracts to sign to get landline Internet access: (1) with the telecommunications carrier who owns and installs the fiber internet optic line, and (2) with the company that provides access to the Internet, i.e., your Internet service provider.

In recent years, internet service providers in Japan have started to bundle these two services together so that you only need to sign one contract. (Good news: In this article, we're only listing bundled plans.) 

Tip 2. Check if you already have a contract.

Find out if your mansion or building complex has a contract with a telecommunications carrier.

If you live in an apartment, your building may have already signed a contract with a wired landline carrier. This could narrow your options when choosing your provider, so find this out first. (If you need help with that, let us know!) 

Tip 3. Assess speed and stability. 

Your choice should be steadier and faster than pocket Wi-Fi, which is often sufficient for light use, but inconsistent for heavy streaming or video calls.

If you don't do heavy streaming, but want website pages to load quickly, then 1 Gbps might be sufficient for your needs. Also, check whether the provider uses a Hikari fiber optic line (the current standard) rather than ADSL, an older and slower technology that transmits over copper telephone lines.

Tip 4. Check if they service your region. 

Not all carriers provide equal service throughout Japan. If you are moving to the Tokyo Metropolitan Area or other urban region, you will have many providers from which to choose.

Those in rural areas will need to look at the fine print of the Internet connection service to see if the telecommunications carrier provides sufficient coverage to that area. 

Tip 5. Be aware of penalties and extra costs.

If your apartment or house is uncontracted with a telecommunications company, that means you will need to pay for the fiber optic internet line to be installed (between ¥15,000 to ¥40,000; construction fees differ depending on whether yours is a single-unit house or an apartment).

Some companies waive this fee or bake this fee into your monthly payments—but if you cut your contract before it's up, you might need to pay it off in one go. There may be other cancellation fees to contend with, so be sure to ask about this before signing up. 

Tip 6: Plans are often divided into two basic types. 

When visiting any website, you'll notice that typical plans are divided into a higher-priced plan if you live in a house and a lower-priced plan for apartments. The thinking behind this is likely that if you live in a single-unit residence, you probably have more household members using the Internet than someone in an apartment. 

The 7 best Internet providers in Japan

Ready to choose a service? Let's go shopping for the best internet service that will fit your needs. 

1. Nuro Hikari (Japanese website) 

Nuro Hikari is considered one of the fastest internet providers in Japan, offering both 2 Gbps and 10 Gbps plans at ¥3,980/month for houses and ¥2,980/month for apartments (as of April 2026). Unlike most providers, the current plan has no contract lock-in period and no cancellation fee. The basic construction fee of ¥49,500 is offset through a monthly discount, making it effectively free as long as you use the service until the discount period ends.

Precautions: Nuro covers approximately 40% of Japan (Hokkaido, Kanto, Tokai, Kansai, and Kyushu), and installation typically requires two separate construction visits, making setup slower than NTT-based providers.

2. Softbank Hikari (Japanese website)

Softbank Hikari is one of the most popular internet options in Japan, thanks to its wide coverage and strong bundle discounts for SoftBank mobile users. The service offers speeds of up to 1 Gbps on standard plans, with IPv6 support for more stable performance during peak hours. Monthly fees typically range from around ¥4,180 to ¥5,720 depending on whether you live in an apartment or a house, and various campaign discounts are frequently available.

Precautions: A contract period applies, and early cancellation may incur a fee. Installation costs may also be charged unless you apply during a promotion period, so it’s worth checking the latest campaign details before signing up.

3. Docomo Hikari (Japanese website)

The Docomo Hikari plan includes free rental of a Wi-Fi router, monthly discounts on Docomo phone charges, and an IPv6 connection that minimizes congestion issues.

A good option if you are already a Docomo mobile plan user or plan to use them in the future. The speed is 1 Gbps to 10 Gbps. If you apply during a campaign month, construction costs are zero. Monthly fees range from ¥4,400 to ¥5,720. 

Precautions: Cancellation fees kick in if you end your contract before the contract period is up. Also, compensation is required if you have rented a wireless router as part of your plan and it is not returned once the contract is up or if it is found to be damaged upon its return.

4. Au Hikari (Japanese website)

After Nuro Hikari, this is one of the fastest Internet providers you can choose from. Monthly charge ranges from ¥3740 to ¥5,610～, for apartments and houses, respectively. Expect to pay more for their speedier data plans. Construction fees vary based on building type and the work required, as determined by KDDI after your application. Many campaigns offset or waive these fees, so check the official site before assuming a fixed cost.

Many campaigns and mobile plan tie-ins can bring down your monthly payment but verify the contract particulars before signing the contract. 

Precautions: There is a ¥4,730 cancellation fee.

5. Rakuten Hikari (Japanese website)

Rakuten Hikari is the home internet service from Rakuten Mobile, one of Japan's four major mobile carriers. Rakuten Hikari uses Japan's largest fiber-optic network, NTT FLET'S Hikari, giving it coverage of over 90% of the populated area in Japan. It supports speeds of up to 1 Gbps with IPv6 for stable performance during peak hours.

Monthly fees are ¥4,180/month for apartments and ¥5,280/month for houses.

The main draw for Rakuten users is the bundling incentive: if you sign up for both Rakuten Mobile and Rakuten Hikari simultaneously, you receive 1,000 Rakuten points back every month, effectively reducing your monthly cost, as well as a boosted point multiplier on Rakuten Ichiba purchases.

Precautions: Rakuten Hikari's network speeds can be inconsistent during peak hours in some areas. Customer support is primarily in Japanese, so it is best suited to those already comfortable operating within Rakuten's ecosystem. If you need English support, consider one of the foreigner-friendly providers below.

6. GTN Hikari (Japanese website)

GTN Hikari (Global Trust Networks) is a fiber internet provider specifically designed for foreign residents in Japan. GTN Hikari uses the same cable network as Softbank Hikari and offers multilingual customer support in seven languages: Japanese, English, Chinese, Korean, Vietnamese, Nepali, and Indonesian. Contract signing, installation arrangements, and cancellations can all be handled in your language of choice.

This makes GTN one of the most accessible options for non-Japanese speakers who need full support through the entire process without relying on a Japanese-speaking intermediary.

Precautions: Because GTN runs on the NTT/Softbank network, speed and coverage are comparable to Softbank Hikari. Check the official GTN site for current pricing and campaigns, as rates and installment fee discounts change regularly.

7. Sakura Fiber Internet

Sakura Fiber Internet is built specifically for international residents in Japan and is one of the few providers where the entire process is available fully in English, 365 days a year. Sakura Fiber Internet uses NTT FLET'S Hikari's network, with a maximum connection speed of 1 Gbps and coverage across over 90% of Japan's populated areas. Unlike most providers, it does not require a 2-year contract commitment.

Monthly fees are around ¥6,480/month — slightly higher than Japanese-language alternatives — but this reflects the English support infrastructure and the flexibility of no long-term contract. For foreigners on shorter stays, those uncomfortable navigating Japanese-only customer service, or those who have had poor experiences with language barriers during installation, Sakura Fiber is often the most practical choice despite the price premium.

Precautions: Speeds are capped at 1 Gbps (no 10 Gbps option currently). The higher monthly fee makes it less cost-competitive for long-term residents who are comfortable in Japanese.

Frequently asked questions

Who are the main internet providers in Japan?

The main internet providers in Japan offering bundled fiber plans include Nuro Hikari, Softbank Hikari, Docomo Hikari, Au Hikari, and Rakuten Hikari. For foreign residents who need English-language support throughout the entire process, GTN Hikari and Sakura Fiber Internet are also widely used options.

What types of internet services are available in Japan?

Japan's home internet is dominated by fiber-optic (光回線, hikari kaisen) connections, with fiber networks reaching approximately 99.9% of premises nationwide. The major fiber networks are NTT FLET'S Hikari, au Hikari, and NURO Hikari. For short-term residents or those without a fixed address, pocket Wi-Fi is a flexible alternative with no installation required.

How can I choose the best internet provider for my needs?

To choose the best internet provider for your needs in Japan, consider whether you require a bundled service, then check whether the service you're interested in using provides good coverage in your region.

How fast is the internet in Japan?

Internet speed in Japan will vary based on your internet service provider, but the best internet services will range from 1Gbps to 10Gbps.

Can I get internet service without a long-term contract?

Contract terms vary by provider. Nuro Hikari currently offers plans with no lock-in period and no cancellation fee. Other major providers such as Softbank Hikari, Docomo Hikari, and Au Hikari typically require a 2-year contract, with cancellation fees applying if you exit early.

What is the average cost of internet in Japan?

Monthly fees vary by residence type. Apartments typically cost ¥4,500–¥5,500 per month, while single-family houses range from ¥5,200–¥7,000 per month. Note that many plans also carry separate installation fees and some require line rental fees on top of the ISP fee.

Are English-speaking customer support services available for internet providers in Japan?

Yes. Several providers offer meaningful English support. Sakura Fiber Internet provides full English support for applications, installation, and ongoing customer service, with no Japanese required at any stage. GTN Hikari offers support in seven languages including English, Chinese, Korean, and Vietnamese, making it one of the most multilingual options available. Asahi Net also provides English-language connection services for plans including FLET'S Hikari and Docomo Hikari, though you will be paying for the line and the ISP separately in that case.

In closing

The internet services listed in this article contain many details that we could not easily cover within the space of one article. To find the plan that will best fit your needs, make sure to read through the fine print to avoid penalties or signing up for something insufficient for your needs.