NTT East Speed Test - Japan | Kencang
Test your NTT East internet speed in Japan
www.ntt-east.co.jpNTT East is the largest fixed broadband provider in eastern Japan, operating the FLET'S Hikari fiber network. NTT East serves approximately 13 million fiber subscribers and holds about 33% of Japan's FTTH market share. The network covers all prefectures east of Niigata and Nagano, including Tokyo, Kanagawa, Chiba, and Saitama.
About NTT East
NTT East (Nippon Telegraph and Telephone East Corporation) was created in 1999 when NTT split into regional companies. NTT East inherited the eastern half of Japan's fixed-line telephone and broadband infrastructure. The company operates from its headquarters in Shinjuku, Tokyo.
NTT East launched its FLET'S Hikari fiber-to-the-home service in 2001, pioneering consumer fiber in Japan. The FLET'S Hikari network now passes over 30 million homes across 17 prefectures in eastern Japan. NTT East and NTT West together control approximately 58% of Japan's FTTH subscriptions.
Unlike most ISPs that bundle their own service, NTT East operates a wholesale model. Customers subscribe to the NTT East fiber line and choose a separate ISP (such as OCN, So-net, BIGLOBE, or @nifty) for internet access. Some providers like docomo Hikari and SoftBank Hikari resell the FLET'S line with their own ISP included.
NTT East Plans and Services
NTT East offers several internet plans across different technologies and price points.
NTT East's core product is FLET'S Hikari Next, offering 1 Gbps fiber for JPY 5,940 per month for houses and JPY 3,685 per month for apartments. Customers must also pay a separate ISP fee of JPY 550-1,100 per month, bringing total costs to JPY 4,235-7,040.
FLET'S Hikari Cross provides 10 Gbps speeds at JPY 6,600 per month in the Tokyo metropolitan area and select cities. NTT East announced a 25 Gbps FTTH service launching in Tokyo from March 2026 at JPY 8,250 per month. This makes NTT East the first provider in Japan to offer 25 Gbps consumer fiber.
All FLET'S Hikari plans come with 2-year contracts. Early cancellation costs up to JPY 4,400. NTT East also offers Wi-Fi router rentals, IP phone service (Hikari Denwa), and TV services (FLET'S TV). IPv6 IPoE connections are available through compatible ISPs for faster speeds during peak hours.
NTT East Internet Plans
| Plan | Speed | Price | Features |
|---|---|---|---|
| FLET'S Hikari Next Giga Family (House) fiber | 1 Gbps | JPY 5,940/month |
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| FLET'S Hikari Next Giga Mansion (Apartment) fiber | 1 Gbps | JPY 3,685/month |
|
| FLET'S Hikari Cross (House) fiber | 10 Gbps | JPY 6,600/month |
|
| FLET'S Hikari Cross (25 Gbps) fiber | 25 Gbps | JPY 8,250/month |
|
Prices and availability may vary by location. Contact NTT East for current offers.
NTT East Coverage by Region
NTT East performance varies by location. Coverage density, local infrastructure, and network congestion affect speeds in each market.
Tokyo 23 Wards
First area for 25 Gbps service launch in March 2026
Greater Tokyo (Yokohama, Saitama, Chiba)
10 Gbps availability expanding throughout suburban areas
Tohoku Region (Sendai, Morioka)
10 Gbps limited to Sendai and select cities
Hokkaido (Sapporo)
10 Gbps available in Sapporo city. Limited in other Hokkaido cities
Is NTT East Right for You?
Every provider has trade-offs. Here is how NTT East performs based on real-world usage and customer feedback.
Strengths
- Widest fiber coverage in eastern Japan. Available in virtually all urban and suburban areas
- 10 Gbps and upcoming 25 Gbps plans for future-proofing
- Choice of ISP provider. Pick OCN, So-net, BIGLOBE, or others
- Apartment plans start at JPY 3,685 per month. Among the cheapest fiber options
- Stable fiber infrastructure with decades of reliability
- IPv6 IPoE available for better peak-hour performance
- Compatible with docomo Hikari, SoftBank Hikari, and other reseller bundles
Weaknesses
- Separate ISP fee adds JPY 550-1,100 on top of NTT line charge
- Apartment connections share bandwidth. Slower during peak hours
- IPv4 PPPoE connections can be congested. Must enable IPv6 IPoE for best speeds
- No mobile service. Must use a separate carrier for phone
- Only covers eastern Japan. NTT West handles western prefectures
- Installation can take 2-4 weeks depending on building and availability
Best For
- Residents of eastern Japan who want the widest fiber coverage
- Apartment dwellers who want affordable fiber starting at JPY 3,685
- Users who want to choose their own ISP for best pricing
- Power users who want 10 Gbps or future 25 Gbps service
- DoCoMo mobile users who bundle with docomo Hikari for discounts
Not Ideal For
- Users who want a simple all-in-one package without choosing a separate ISP
- Residents of western Japan (NTT West territory)
- Users who want an independent fiber network (au Hikari is separate from NTT)
- Those who need fiber and mobile from one provider (consider docomo Hikari bundle)
How NTT East Compares
Side-by-side comparison of NTT East against major competitors in Japan.
| Competitor | Speed | Price | Coverage | Verdict |
|---|---|---|---|---|
| Ntt West | Both offer 1 Gbps and 10 Gbps plans. NTT East is first to announce 25 Gbps service. | NTT East house plan at JPY 5,940. NTT West similar pricing around JPY 5,940. Nearly identical. | NTT East covers prefectures east of and including Niigata and Nagano. NTT West covers the rest. | The choice depends on your location. If you live in eastern Japan, NTT East is your NTT provider. If western, NTT West. |
| Au Hikari | Both offer 1 Gbps and 10 Gbps. NTT East will offer 25 Gbps. au Hikari is limited to 10 Gbps maximum. | NTT East total cost (line + ISP) is JPY 4,235-7,040. au Hikari at JPY 5,610 for 1 Gbps all-inclusive. | NTT East has wider coverage. au Hikari is unavailable in Kansai and Chubu. | Choose NTT East for widest coverage, ISP choice, and 25 Gbps future option. Choose au Hikari for less congested separate network. |
Troubleshooting NTT East Issues
Common NTT East connection problems and how to fix them.
FLET'S Hikari speed is well below 1 Gbps during evening hours
Cause: IPv4 PPPoE connections experience congestion at NTT network exchange points during peak hours (7pm-11pm).
- Contact your ISP and request IPv6 IPoE (v6 Plus, transix, or OCN Virtual Connect)
- IPv6 IPoE bypasses the congested PPPoE exchange points
- Test speed with a wired Ethernet cable to rule out Wi-Fi limitations
- Check your router supports IPv6 IPoE passthrough
- If speeds remain slow, consider switching to a different ISP on the same FLET'S line
FLET'S Hikari installation appointment is weeks away
Cause: High demand or building requires new fiber cable installation.
- Book the installation appointment as early as possible after signing up
- For apartment buildings, confirm the building already has NTT fiber equipment
- Ask if an earlier date is available due to cancellations
- Consider a mobile Wi-Fi router rental as temporary internet while waiting
NTT East History
Key milestones in NTT East development and network expansion.
Created from NTT's regional split as NTT East Corporation
Launched FLET'S Hikari fiber-to-the-home service, pioneering consumer fiber in Japan
Reached 2 million FTTH subscribers across eastern Japan
Launched FLET'S Hikari Next Giga service with 1 Gbps speeds
Launched FLET'S Hikari Cross 10 Gbps service in Tokyo area
Announced 25 Gbps FTTH service for Tokyo, launching March 2026
Test Your NTT East Speed
Run a free speed test to check if NTT East delivers the speeds you are paying for. Test during peak evening hours for the most realistic results. Compare your results against NTT East advertised speeds above.
NTT East Speed Test FAQ
What is FLET'S Hikari and how does it work?
FLET'S Hikari is NTT East's fiber-to-the-home broadband service. NTT East provides the physical fiber line to your home or apartment, but you also need a separate ISP (internet service provider) contract to access the internet. Popular ISPs include OCN, So-net, BIGLOBE, @nifty, and ASAHI Net. Some services like docomo Hikari and SoftBank Hikari bundle the NTT line and ISP into one package. The NTT line fee is JPY 5,940 per month for houses, and the ISP adds JPY 550-1,100 monthly.
Why is my FLET'S Hikari speed slow at night?
Most FLET'S Hikari speed issues at night are caused by IPv4 PPPoE congestion. NTT's network exchange points become overloaded between 7pm and 11pm when many users are online simultaneously. The fix is to enable IPv6 IPoE through your ISP. IPv6 IPoE bypasses the congested exchange points and delivers consistently fast speeds at all hours. Contact your ISP and ask for v6 Plus, transix, or OCN Virtual Connect. Most modern routers support IPv6 IPoE with a simple settings change.
Is 10 Gbps FLET'S Hikari Cross worth the upgrade?
FLET'S Hikari Cross at 10 Gbps costs JPY 6,600 per month, only JPY 660 more than the 1 Gbps house plan. For users who regularly transfer large files, run game servers, or have many devices streaming simultaneously, the upgrade provides measurable improvement. Real-world speeds typically reach 2-8 Gbps on the 10 Gbps plan. You need a 10G-compatible router and Ethernet cables (Cat6a or better). For most households with basic browsing and streaming, the 1 Gbps plan with IPv6 IPoE provides sufficient speed.