日本外线速度惊人（日本外线快如闪电）

Clarifying Japan's Internet Speeds

The user mentioned something in Chinese about Japan's internet speed, which I translated. It seems they might want to discuss various aspects of Japan’s internet, like mobile or broadband speeds. I should clarify what specifically they’re interested in, like whether they're talking about mobile 5G or fiber!

Since my knowledge goes up until October 2024, I can provide general info, but I can’t give details for 2025. I'll keep it concise.Summarizing Japan's Internet Infrastructure

Japan boasts impressive FTTH (Fiber to the Home) adoption, featuring services like NTT FLET'S Hikari, AU Hikari, and So-net NURO Hikari, with speeds reaching up to 10 Gbps. NTT Docomo also provides high-speed 5G mmWave in select areas. The country's international connectivity is robust, with several submarine cables, including FASTER, JUPITER, and APRICOT—planned for 2024. The term "outside line speed" likely refers to Japan’s international network capabilities, which are often compared to those in China.Discussing Japan's Internet Connectivity

The user's phrase seems like a casual comment that could spark a conversational reply, like how Japan has a high broadband adoption rate with fiber connections offering speeds of 10G or 20G. Japan benefits from low latency to the US and Southeast Asia, thanks to IX peering and open access provided by NTT. On average, Japan ranks in the top ten for fixed broadband speeds, with median speeds around 180-220 Mbps and mobile speeds between 55-80 Mbps, particularly with 5G.Responding to Internet Speed Inquiry

I want to ensure I'm providing accurate information without any inaccuracies. It’s true that Japan consistently ranks high globally in fixed broadband and fiber penetration. Examples like NURO Hikari's 10G plan and NTT's FLET'S Hikari Cross 10G highlight this. Some services even offer 20G in select areas. I could ask what specific aspect the user is curious about, and suggest they compare with their region, providing tools like iperf3 or speedtest-cli. Let’s keep it concise and maybe ask for clarification!Providing Information on Japan's Internet

Absolutely! In Japan, fixed broadband is primarily FTTH, with symmetrical speeds starting at 1G and 10G plans available in major cities, and even 20G in some areas. Tokyo and Osaka serve as significant Asia Pacific hubs with international connections via JPNAP and BBIX, plus numerous trans-Pacific cables like JUPITER and FASTER. Latency to the U.S. West Coast is around 100-120 ms, while connections to regions like Hong Kong or Singapore generally see 30-70 ms. I should ask if the user is experiencing fast speeds on a particular line or if they're looking for advice on picking broadband or mobile plans!