Hướng dẫn

After Your Contract

Activation, setup, your first bill, and — most importantly — where to go when you need help.

Menu, nhãn và nội dung hướng dẫn có sẵn bằng ngôn ngữ đã chọn. Tên nhà mạng, tên gói cước và các tên riêng khác có thể được giữ theo cách viết chính thức.
Kiểm tra lần cuối: 2026-08-29 (JST)Cách đăng ký và tùy chọn hỗ trợ có thể thay đổi. Luôn kiểm tra thông tin chính thức mới nhất trước khi đăng ký.

The first week

SIM / eSIM activation
Initial phone setup
Account & carrier app setup
Check your first monthly bill
Save your contract details
Know where to ask for support

Carrier telephone and support contacts

The number, call charge and available hours depend on both the brand and the purpose. Tap a number on a phone to call, and confirm the latest details on the linked official page.

151, 157, 113 and 116 are not universal numbersA short code works only from the corresponding carrier line. The same digits can have a different meaning or charge on another brand. For example, DOCOMO's 151 is free, while Y!mobile's 151 is generally charged.

NTT DOCOMO

Shop, phone, chat, My docomo and web

Thắc mắc chung

9:00–20:00, every day
  • 151From a DOCOMO mobile · Free
  • 0120-800-000Từ điện thoại cố định hoặc nhà cung cấp dịch vụ khác · Free

151 works only from a DOCOMO line. Some IP phones cannot reach the toll-free number.

Failure, repair and signal reception

Failures: 24 hours; reception enquiries: 9:00–20:00
  • 113From a DOCOMO mobile · Free
  • 0120-800-000Từ điện thoại cố định hoặc nhà cung cấp dịch vụ khác · Free

The menu and staffed hours depend on the subject.

Urgent suspension after loss or theft

24 hours, every day
  • 15712From a DOCOMO mobile · Free
  • 0120-524-360Từ điện thoại cố định hoặc nhà cung cấp dịch vụ khác · Free

This desk suspends or resumes the line and handles Omakase Lock. Web procedures are also available.

Multilingual information

9:00–20:00, every day
  • 0120-005-250English, Portuguese, Chinese and Spanish · Free

Call with caller ID enabled. Some IP phones cannot connect.

Trang liên hệ chính thức

ahamo

Web, app and chat

General support

AI chat: 24 hours; specialist chat: 9:00–22:00
Không có đường dây điện thoại chung

There is no ordinary general-support phone line. Use the ahamo site, app or chat.

Paid remote-operation support

9:00–20:00

This is not the general ahamo desk. Advance subscription to Anshin Remote Support (¥660/month) is required.

Loss or theft while overseas

24 hours, every day

In Japan, suspend the line from the ahamo procedures page or contact chat if you cannot authenticate.

Trang liên hệ chính thức

au (KDDI)

Shop, phone, chat, My au and web

General information, charges and operation

9:00–20:00, every day
  • 157From an au mobile · Free
  • 0077-7-111From a landline or non-au phone · Free
  • 0120-977-033If the above number cannot be reached (outside Okinawa) · Free
  • 0120-977-699If the above number cannot be reached (Okinawa) · Free

The current support page also provides subject-specific 0077 numbers. Follow the official menu for the exact enquiry.

Urgent suspension after loss or theft

24 hours, every day

Use My au first to locate the handset if possible; locating can stop working after line suspension.

Trang liên hệ chính thức

povo2.0

povo app, web and chat

General support

Staffed chat: 9:00–19:00; chatbot: 24 hours
Không có đường dây điện thoại chung

povo2.0 does not accept general enquiries by phone. Procedures and support are handled in the app or by chat.

Urgent suspension after SIM loss or theft

Chat is available 24 hours for loss/theft suspension and resumption
Không có đường dây điện thoại chung

From 19:00 to 9:00, the staffed chat handles only loss/theft suspension and resumption.

Trang liên hệ chính thức

SoftBank

Shop, phone, chat, My SoftBank and web

Thắc mắc chung

Automated service: 24 hours; operator: 10:00–19:00
  • 157From a SoftBank mobile · Free
  • 0800-919-0157Từ điện thoại cố định hoặc nhà cung cấp dịch vụ khác · Free

Operator chat is generally 9:00–20:00. Some subjects have different hours.

Loss, theft or failure

Automated suspension: 24 hours; operator: 10:00–19:00
  • 113From a SoftBank mobile · Free
  • 0800-919-0113Từ điện thoại cố định hoặc nhà cung cấp dịch vụ khác · Free

My SoftBank can also suspend or resume the line.

Loss or theft while overseas

24 hours, every day

Contact the international call centre immediately to suspend the USIM/eSIM.

Trang liên hệ chính thức

LINEMO

Web, My Menu and chat

General support

Online guidance and chatbot: 24 hours; staffed hours depend on the subject
Không có đường dây điện thoại chung

There is no ordinary general-support phone line and no shop counter. Use My Menu, the support pages or chat.

Application status and certain initial SIM problems

10:00–19:00, every day except 1 January

This is a limited-purpose application desk, not the general LINEMO support line.

Emergency line suspension or resumption

Automated guidance: 24 hours
  • 0800-919-3442From a LINEMO, other-carrier or landline phone · Free

This number handles only emergency suspension and resumption. The contract holder's four-digit PIN is normally required.

Trang liên hệ chính thức

Rakuten Mobile

Shop, phone, chat, my Rakuten Mobile and web

Considering a new contract or MNP

9:00–17:00, every day

Japanese-language support.

After application through initial setup

9:00–17:00, every day

The applicant or contract holder should call.

Existing Rakuten SAIKYO Plan customer

9:00–17:00, every day
  • 050-5434-4653From a mobile or landline · Charged; free from Rakuten Link

Contract, billing and unpaid-charge enquiries must normally be made by the contract holder.

Urgent suspension after loss or theft

24 hours, every day

Japanese-language support; the contract holder should call.

From overseas

24 hours, every day
  • 050-5434-4633From outside Japan · International charges may apply

Rakuten Link or Viber calls may be free. Support is in Japanese.

English support

9:00–17:00, every day

A three-way call with an interpreter may be used. Contract-specific questions should come from the contract holder.

Trang liên hệ chính thức

UQ mobile

UQ spot / au shop, phone, chat, My UQ mobile and web

Thắc mắc chung

10:00–19:00, every day

Prepare the contract phone number and four-digit PIN. My UQ mobile app may show a direct calling route.

Multilingual support

10:00–19:00

Use the number for the language you need.

Urgent suspension after loss or theft

24 hours, every day

Web suspension is also available through My UQ mobile.

Trang liên hệ chính thức

Y!mobile

Y!mobile / SoftBank shop, phone, chat, My Y!mobile and web

Operator support

Operator: 10:00–19:00, every day

Unlike DOCOMO's 151, Y!mobile's 151 is not automatically free. Eligible call-flat-rate options may cover it.

Automated procedures, including line suspension

Automated guidance: 24 hours
  • 116From a Y!mobile phone · Free
  • 0120-921-156From another mobile or landline · Free

Prepare the contract phone number, My Y!mobile password and four-digit PIN.

Trang liên hệ chính thức

IIJmio

Phone, web form, chat and member page

IIJ Support Center

9:00–19:00, every day

Support is in Japanese. The AI chatbot is available 24 hours.

Trang liên hệ chính thức

mineo

Phone, free web call, email, chat and member page

mineo Support Dial

9:00–18:00, every day; emergency suspension only: 24 hours
  • 0120-977-384From a mobile or landline · Free
  • 050-7102-8890If the toll-free number cannot be reached or from overseas · Charged; free from LaLa Call

Prepare the mineo contract notice or registration certificate. A data-only SIM can use the official web free-call option.

Trang liên hệ chính thức
Kiểm tra lần cuối: 2026-08-29 (JST)Cách đăng ký và tùy chọn hỗ trợ có thể thay đổi. Luôn kiểm tra thông tin chính thức mới nhất trước khi đăng ký.
Prepare before callingHave the contract phone number, contract holder's name, four-digit network PIN and account ID ready. Never tell an operator your My Number card password, driving-licence PIN or a one-time SMS code.

Language support

Multilingual numbers are included above where the carrier publishes them.

DOCOMO publishes one multilingual toll-free number for English, Portuguese, Chinese and Spanish. UQ mobile publishes separate toll-free numbers for eight languages, including English, Tagalog, Vietnamese and Nepali. Rakuten Mobile also publishes an English-support number. For brands without a multilingual voice desk, use official chat or web guidance with a translation tool, or reserve a shop that confirms language support.

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