


* High-speed, large-capacity 5G (new frequency is 3.7GHz only) is available in limited areas. * Only NSA 5G is available at Y! Y!mobile.
Videos, SNS, and calls
comfortable
* High-speed, large-capacity 5G (new frequency is 3.7GHz only) is available in limited areas. * Only NSA 5G is available at Y! Y!mobile.
Good communication that you can "experience."
Every day, we improve our network.
We are working on it.
We value quality, not just speed, but also comfort.
Collecting and analysing various data,
We will create better communications today than yesterday, and tomorrow than today.
Create a cycle of analysis, investigation, and countermeasures.
Detect and respond to early signs of problems.
We identify areas with declining quality by analyzing communication quality data from base stations and models. We also use customer feedback and AI for further analysis.
▼
In addition to big data analysis, we also visit the sites to measure communication quality and investigate the actual usability.
▼
In areas of declining quality identified through investigation and analysis, we will quickly implement measures appropriate to the situation, such as adjusting antennas, adding base stations, and switching to 5G.
The service is available in the following areas. The maximum service area is the area where the service is available.
[5G] 3.7GHz, 700MHz, 1.7GHz, 3.4GHz, 28GHz
[4G] 2.5GHz, 2.1GHz, 1.7GHz, 900MHz
Please check here for an area map of all supported frequencies.
5G service will be available in limited areas and will be gradually expanded. Please check the applicable areas carefully before signing up for the service.
The service area will vary depending on the communication method and frequency supported by your device.
Depending on the model, you may not be able to use the available communication methods and frequencies even if they match.
For information about the specifications of your mobile phone model, please contact your mobile phone retailer.