1. KDDI HOME
  2. Corporate Information
  3. About KDDI
  4. Released Information
  5. KDDI's Privacy Policy
  6. Appendix 4: Provision of personal data to a third party in the field of telecommunications business or intermediary service for installment sales and individual credit purchases

KDDI's Privacy Policy

Appendix 4: Provision of personal data to a third party in the field of telecommunications business or intermediary service for installment sales and individual credit purchases

Provision of personal data to a third party in the field of telecommunications business

KDDI may, in accordance with the terms of contracts and other provisions, give other telecommunications companies personal data on nonpaying customers, senders of commercial or other unsolicited e-mail (spam), or customers whose service has been suspended due to refusal to respond to requests for identification verification in accordance with Article 11 of the Act for the Prevention of Illegal Mobile Phone Use (Jump to the applicable sectionAppendix 4―1).
For the purposes of preventing illegal contracts, the occurrence of nonpayment of charges, and other incidents, we may provide other mobile phone carriers with personal information (name, address, date of birth, identification documents, identification numbers, methods of forgery, contract screening results, etc.) related to forged or falsified identification documents submitted by customers or persons applying for a contract. (Jump to the applicable sectionAppendix 4―1)

KDDI may provide the necessary personal data, in accordance with the terms of contracts or other provisions, or with prior consent from the customer, to other mobile phone carriers or PHS carriers involved in the implementation of Mobile and PHS Number Portability (MNP) or telecommunications carriers with whom we have entered into interconnection agreements.
KDDI may provide a customer's personal data (such as the location from which a call was placed, name, address, phone number, etc. of the customer), in accordance with the terms of contracts or other provisions, to organizations that deal with emergencies (such as the Police Agency, Coast Guard Headquarters or the Fire Department).

In the event that a customer files a complaint against KDDI regarding e-mail or SMS (C-mail) (hereinafter referred to as "e-mail, etc.") received by the customer, KDDI may, with prior consent from the customer, give other telecommunications companies personal data related to such filing. (Jump to the applicable sectionAppendix 4―1) In addition, in the event that a line contractor with a telecommunications carrier other than KDDI who received e-mail, etc. sent by a customer files a complaint against such telecommunications carrier regarding the email, etc. sent by the customer, KDDI may, in accordance with the terms of contracts or other provisions, receive personal information on the customer from such telecommunications carrier. (Jump to the applicable sectionAppendix 4―2)

Provision of personal data to a third party in the field of intermediation of installment sales and individual credit purchases

Based on the Installment Sales Act, KDDI provides and registers subscribers’ personal information to the personal credit information reference center of which KDDI is a member (hereinafter referred to as "Membership Credit Information Center"). This information is used by the respective members of the Membership Credit Information Center and the individual credit information centers affiliated with the Membership Credit Information Center (hereinafter referred to as "Affiliated Credit Information Centers"; collectively referred to with the Membership Credit Information Center as "Membership Credit Information Center, etc.") for the purpose of investigating the subscribers’ ability to pay and repay.
The information provided and registered to the Membership Credit Information Center is listed in Jump to the applicable sectionAppendix 4―3.

4―1 Sharing Information Among Carriers

About the notification of personal data of nonpayers

After canceling the contract with a nonpayer based on the terms of contracts or other provisions related to KDDI mobile communications services due to grounds of non-payment, KDDI may notify the business operators listed in "Entities Notified" below of the personal data of nonpayers who have not payed rates or other payables.

Items of personal data provided Name, address, phone number, date of birth, payment status, etc.
Purpose of use of personal data provided Screening at the time of service application
Entities notified Mobile phone carriers, PHS carriers, and BWA access service providers (business operators that provide services using a broadband wireless access system)
Entity responsible for managing the personal data KDDI CORPORATION

About the notification of personal data related to forged or falsified identification documents, etc.

With regards to provided mobile communications services, we may notify the carriers stipulated in "Entities Notified" below of personal data related to forged or falsified identification documents for the purposes of preventing illegal contracts, the occurrence of nonpayment of charges, and other incidents pursuant to the implementation of the confirmation of individuals based on Article 3 of the Act for the Prevention of Illegal Mobile Phone Use.

Items of personal data provided Name, address, date of birth, identification documents, identification numbers, methods of forgery, contract screening results, etc.
Purpose of use of personal data provided Screening at the time of service application
Entities notified Mobile phone carriers and PHS carriers
Entity responsible for managing the personal data KDDI CORPORATION

About the notification of personal data [1] related to the transmission of spam messages, etc.

With regards to provided mobile communications services, we may notify the carriers stipulated in "Entities Notified" below of personal data [1] related to forged or falsified identification documents for the purposes of preventing illegal contracts, the occurrence of nonpayment of charges, and other incidents pursuant to the implementation of the confirmation of individuals based on Article 3 of the Act for the Prevention of Illegal Mobile Phone Use.

  • [1]
    Personal data related to the transmission of spam messages, etc. refers to information on a subscriber who KDDI has terminated the contract with by reason of the subscriber simultaneously sending e-mails to a large number of recipients in such a way that violates the Act on Regulation of Transmission of Specified Electronic Mail (Act No. 26 of April 17, 2002) or otherwise causes a risk of problems in the general transmission of e-mails.
Items of personal data provided Name, address, phone number, date of birth, etc.
Purpose of use of personal data provided Screening at the time of service application
Entities notified Mobile phone carriers and PHS carriers
Entity responsible for managing the personal data KDDI CORPORATION

Notification of personal data of customers who did not provide personal identification

In providing mobile communication services, KDDI may notify the business operators listed in "Entities Notified" below of the personal data of any subscriber whose use of KDDI services has been stopped due to their non-provision of personal identification required under Article 11 of the Act for the Prevention of Illegal Mobile Phone Use.

Items of personal data provided Name, address, phone number, date of birth, etc.
Purpose of use of personal data provided Screening at the time of service application
Entities notified Mobile phone carriers and PHS carriers
Entity responsible for managing the personal data KDDI CORPORATION

4―2 Notification of Personal Data of E-mail etc. Recipients and Receipt of Personal Data of E-mail etc. Senders

About the notification of personal data of e-mail etc. recipients and receipt of personal data of e-mail etc. senders

Upon receiving a report of complaint regarding e-mail, etc., KDDI may notify mobile phone carriers of the personal data in question, reported by e-mail etc. recipient(s), in order to prevent further problems in the transmission of e-mail etc. KDDI may also receive personal data of e-mail, etc. senders from mobile phone carriers.

Items of personal data provided or received E-mail address and phone number of sender/recipient, subject of e-mail, date/time of transmission, body of message, etc.
Purpose of use of personal data provided or received Prevention of problems in the general transmission of e-mail, etc.
Carriers providing or receiving personal data Mobile phone carriers and PHS carriers
Entity responsible for managing the personal data KDDI CORPORATION

4―3 Provision and Registration of Personal Information to Membership Credit Information Center

The information provided and registered to the Membership Credit Information Center is as follows:

  • Name, date of birth, address, phone number, employer, phone number at employer, symbol/number of driver’s license, and other information for identifying the individual
  • Subscription type, date of subscription, subscription amount, loan amount, product name and quantity/number of payments, and other information on the subscription
  • Outstanding balance, installment balance, expected amount of annual charge, dates of payment, date of payment completion and any delays, and other information on payment status
  • The fact that the case is under investigation due to a complaint, etc. regarding information on the payment status (including a petition for plea to suspend payment)

The period of registration of information provided to the Membership Credit Information Center is as follows:

Registered information Registration period
  1. Fact of making an application for installment contract, etc.
6 months from the date of KDDI’s inquiry with the Membership Credit Information Center
  1. Objective fact of transaction for installment contract, etc.
During the term of contract or within 5 years of the termination or expiry of contract
  1. Fact of delay in payment of debt
During the term of contract or within 5 years of the last date of the term of contract

Membership Credit Information Center, etc.

a. Membership Credit Information Center

Credit Information Center CORP. (CIC) (Designated credit bureau under the Installment Sales Act)
Shinjuku First West 15F, 1-23-7 Nishi-Shinjuku, Shinjuku-ku, Tokyo 160-8375
Phone number: 0570-666-414 (calling charge) *Not available for some IP phones.
URL: Open link in a new windowhttps://www.cic.co.jp/(in Japanese only)

b. Affiliated Credit Information Centers

Japanese Bankers Association - Personal Credit Information Center (KSC)
2-5-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005
Phone number: 0120-540-558 (toll-free)
03-3214-5020 (calling charge) *When calling from a mobile phone or PHS
URL: Open link in a new windowhttps://www.zenginkyo.or.jp/pcic/(in Japanese only)

Japan Credit Information Reference Center Corp. (JICC)
41-1 Kanda Higashimatsushitacho, Chiyoda-ku, Tokyo 101-0042
Phone number: 0570-055-955 (calling charge)
URL: Open link in a new windowhttps://www.jicc.co.jp(in Japanese only)