As of August 2026
This document explains important matters under the Telecommunications Business Act that KDDI Corporation and Okinawa Cellular Telephone Company (“our company”) provide to customers using povo2.0.The Japanese version of these important matters shall be the official text, and translations into other languages are provided only for reference. In the event of any discrepancy between the Japanese version and any translated version of this Agreement, the Japanese version shall take precedence.
The services you subscribe to are subject to the standard terms and conditions posted on the following website.
KDDI Corporation
Okinawa Cellular Telephone Company
Please make sure you fully understand the terms of the contract before applying.
*As the file is provided in PDF format, it may not display correctly depending on the PDF viewing software you are using. In that case, please download "Adobe®Reader®" to check.
*Please confirm which plan you wish to apply for before applying.
*The services available to you will vary depending on your contract plan. Please see the povo2.0 website for details.
*Please note that although contact phone numbers may be listed on various correspondence and notifications, we do not respond to inquiries by phone, regardless of the information provided.
Regarding the use of the Internet by minors, parents should make decisions based on their full understanding and responsibility.
[Request to parents]
- Understand the risks of contacting strangers online and set rules appropriate for your child..
・Filtering services cannot completely control children's access to harmful information, etc. Parents must understand and check their children's internet usage, such as adjusting the strength of filtering depending on their child's age and purpose of use, customizing the social media and apps they use, and using time limit functions.
*If you disable Anshin Filter for au, we will contact your parent or guardian (by email).
① If you change from au/UQ mobile / povo1.0 via the designated transfer page
You will continue to use the same contracted company as before the change: au/UQ mobile / povo1.0.
② If you sign a new contract, switch from another company, or change from au/UQ mobile / povo1.0 using a method other than the designated transfer page
・If your address is outside Okinawa Prefecture: KDDI Corporation (Registration number (telecommunications carrier): Ministry of Internal Affairs and Communications No. 3)
・If your address is in Okinawa Prefecture: Okinawa Cellular Telephone Co., Ltd. (Registration number (telecommunications carrier): Okinawa No. 71)
*Even if you change your address at a later date, your contract company will not change.
*1 Includes lines currently in the application process, lines that have been switched to au / UQ mobile, and lines that have been canceled. Canceled lines include those canceled by the Company pursuant to Article 13 of the povo2.0 Terms and Conditions for Communication Services and Section 2(8) of the Terms of Service for “Base Plan.” The cumulative number of lines is calculated by aggregating the figures from KDDI and Okinawa Cellular. *2 This fee applies to lines terminated by us, if applicable (excluding terminations pursuant to Article 13, Paragraph 3 of the Terms and Conditions for Communication Services at povo2.0). *3 The fee will be billed in the month following the contract month or in the month after that.
<Customers other than those listed above>
・There are no fees.
・The Telephone Universal Service Fee ensures that all households nationwide can use telephone services, such as landline service, fairly and reliably, while the Broadband Universal Service Fee ensures the same for broadband services. Please pay the amounts listed on the website (https://www.kddi.com/corporate/kddi/public/universal/) for each respective service.
・The Telephone Relay Service Fee is paid to ensure the proper and reliable provision of telephone relay services, which facilitate communication between people with hearing or speech impairments and those without such impairments. You are required to pay the amount listed on the website (https://www.kddi.com/corporate/kddi/public/telephonerelay/).
All amounts are current as of March 2026 and are subject to change.
・Please note that the Telephone Universal Service Fee, Broadband Universal Service Fee, and Telephone Relay Service Fee will be billed only for months in which your purchased Topping is valid or in which you have used pay-as-you-go voice calls, SMS, etc. However, we will not bill you for the time being. When we begin billing, we will announce it on the povo website.
* Please review the au PAY (auかんたん決済) Terms of Service here.
・ “Calls” and “SMS” are not available on povo2.0 Data Only.
*Based on 70 full-width characters. Depending on the phone model and recipient, up to 670 full-width characters can be sent. In this case, up to 134 characters will incur the fee of two messages, and for every 67 characters thereafter, the fee will be charged as one message.
Calls overseas
Example of call charges per minute (24-hour flat rate)
| Destination |
Domestic calls |
International calls to Japan |
International calls to countries outside Japan |
When receiving calls while abroad |
| U.S. | 120円 | 140円 | 210円 | 165円 |
*Even if you receive a call at your destination, you will be charged for the call.
●Call charges and SMS sending charges to overseas destinations are different from call charges and SMS sending charges within Japan.
Calls to overseas
Example of call charges for 30 seconds (24-hour flat rate)
| Mainland U.S. |
South Korea |
China | Philippines | Thailand |
| 20円 | 55円 | 55円 | 65円 | 65円 |
*Depending on the phone model, you can send up to 670 double-byte characters. However, up to 134 characters will be charged as two messages, and after that, every 67 characters will be charged as one message.
*For details, please refer to our website.
*If we determine that a call is affecting our facilities (e.g., a call continuing for a long period of time), we may disconnect the call.
*1 The latest version of these Terms and Conditions and the effective date will be posted on the website mentioned above, and the Terms and Conditions will come into effect when the effective date arrives.
*2 When logging in from a device other than the contracted device, we will send you an SMS or email and you will be required to authenticate yourself.
●Depending on your usage, you will be required to pay the following fees.
Call charges, Topping usage fees, telephone universal service fees, broadband universal service fees, handling fees (Note), telephone relay service fees, au PAY (auかんたん決済) usage fees, etc.
*Even if you sign up in the middle of the month, the call Topping usage fee, telephone universal service fee, broadband universal service fee, and telephone relay service fee will not be pro-rated.
Note: If you cancel your contract before the fee is charged for your new contract, you will still be required to pay the fee.
*4G LTE areas adjacent to 5G areas and areas where the 5G frequency band is not supported by your device.
*Includes use with various toppings.
*The contents of communications such as messages will not be viewed.
*The contents of communications such as messages will not be viewed.
*This function can be turned off from your device.
| Service Name | "Spam SMS Block" |
| Purpose of the service | Countermeasures against spam SMS |
| Service Overview | Suspected spam SMS will be automatically identified and prevented from reaching customers. |
| Applicable | • This setting is applied by default when you sign up for the contract. (No application is required.) ・You can cancel and reapply this service by submitting a separate application. *To disable or reapply the setting, you will need to configure it individually. Please check the URL below for details. Block spam SMS messages: https://povo.jp/service/sms_filter/ |
| Common matters | ・In rare cases, legitimate (non-spam) SMS messages may be blocked.. (Hereinafter, SMS containing spam content will be collectively referred to as "spam messages") ・We will identify the characteristics of spam messages that fall into the following categories, and then refer to information such as the subject and body of the message sent to you, to prevent messages that match the characteristics of spam messages from reaching you. [Target categories] Fraudulent crimes such as phishing/SMS that may pose a risk to customers/ Malware (malicious software designed to perform unauthorized actions)/drugs/dating/adult |
| Other notes | - SMS that are not delivered due to "Spam SMS Block" will be discarded and you will not be able to check them yourself. ・Regardless of the setting status of "Spam SMS Block," if you switch to au/UQ mobile, "Spam SMS Block" will be set again. |
● "Spam SMS Block" cannot be used with povo2.0 Data Only.
* Smartphones that do not support the communication methods and frequency bands provided by au 4G LTE/ au 5G cannot be used. Please check in advance with the carrier from which you purchased the phone model to find out which communication methods and frequency bands are supported for the model you wish to use. For information on how to set up and operate a mobile phone from another carrier, please check yourself or contact the carrier from which you purchased the phone model.
*Please check whether your phone has received a technical standards conformity certificate before use. Use of other companies' mobile phones that do not have the "Technical Standards Conformity Mark" is in violation of the Radio Law, and we may refuse to allow you to connect to our network.
*For information on affiliated companies and partners, please check the privacy policy (Appendix 5) on each company's website.
KDDI Corporation
Okinawa Cellular Telephone Company
*For information on affiliated financial institutions, affiliated insurance companies, affiliated financial instruments business operators, related companies, and partners, please check the privacy policy on the KDDI website.
*For details on data protection laws and regulations in each country, please see the following pages.
https://www.kddi.com/corporate/kddi/public/privacy-portal/outsource-overseas/#ac_01
*For details, please visit the Telecommunications Carriers Association website.
*Even if you make a call with your smartphone's caller ID set to anonymous, some models will notify the emergency call receiving agency of your phone number and location information. For details, please refer to the instruction manual for your smartphone or contact povo support.
(1) Update the OS (basic software)
Smartphones require OS updates. Using an outdated OS increases the risk of virus infection. If you receive a notification for an OS update, install it immediately.
(2) Confirm the use of antivirus software.
A virus-infected app has been discovered. If you are using an Android™ smartphone, please use "Virus Buster™ for au" or "Virus Block" provided by Ponta Pass.
(3) Be careful when acquiring apps
Some websites that offer apps (sources for obtaining apps) do not conduct sufficient prior screening of safety, etc. There have been cases where apps containing viruses have been discovered on such websites. When obtaining apps, be sure to use reliable websites that have been properly screened for safety by the OS provider or mobile phone company. Also, when installing, be sure to pay attention to the app's functions and terms of use.
*The Mobile Phone Fraud Prevention Act is a law designed to prevent the fraudulent use of mobile phones for crimes such as bank transfer fraud.
*For toppings, the charges will be calculated from the date of purchase (or the date of initial purchase for Auto-charge compatible toppings and various call toppings) until the contract is terminated, and the usage fee for the povo2.0 communication service provided will be charged. Toppings will be canceled at the same time as the initial contract is terminated.
*Please note that this cannot be done at au shops, UQ Spots, or other au/UQ mobile dealers, or at au/UQ mobile customer centers.
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