Home Reports 2025 Global Japan

Internet Speed Report Japan February 2025

A comprehensive analysis of broadband performance in Japan based on real user speed tests conducted on Bandwidth Place.

Total Tests

67

Avg. Download

405.01Mbps

Avg. Upload

286.51Mbps

Avg. Ping

27.4ms

Top Internet Providers

Provider Avg Speed
Cellco Partnership DBA Verizon Wireless 430.5 Mbps
ARTERIA Networks Corporation 929.7 Mbps
Kddi Corporation 252.9 Mbps
NTT Communications Corporation 248.6 Mbps
Sony Network Communications Inc 239.4 Mbps
OPTAGE Inc. 446.2 Mbps
NTT Communications Corporation 216.2 Mbps
Kddi Corporation 486.9 Mbps
NTT Communications Corporation 216.4 Mbps
NTT Communications Corporation 212.5 Mbps

Top Devices

Device Share
iPhone 13.4%
Generic Android 2.0 11.9%
iPhone 10.4%
iPhone 9.0%
iPhone 4.5%
Generic Smartphone 3.0%
Apple iPhone 1.5%
iPhone 1.5%
Apple iPhone 1.5%

Top Browsers

Browser Share
Mobile Safari 13.4%
Android Webkit 11.9%
Mobile Safari 10.4%
Mobile Safari 9.0%
Chrome 9.0%
Chrome 7.5%
Chrome 6.0%
Mobile Safari 4.5%
Firefox 3.0%
Chrome Mobile 3.0%

Analysis Methodology

The data presented in this report is aggregated directly from real user speed tests performed on the Bandwidth Place platform testing network nodes globally during 2025. We calculate the localized metrics using strict data sanity checks to prevent skewed results from anomalies or extreme outliers.

SEO & Location Routing Structure: Because location data is structurally rigid, caching data dynamically to static hierarchy (Country -> State -> City) provides significant improvements to PageSpeed metrics and Time to First Byte (TTFB). This strategy ensures optimum indexing for search engines processing localized queries.