Getting your first Japanese phone plan

Documents, payment methods, SIM and eSIM activation, and getting a phone before a bank account.

CODE: MOBILE-SETUP

Before You Connect or Switch

Confirm the current requirements with your mobile provider.

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Confirm identity and address documents For a resident contract, prepare your residence card with current address and the provider's requested supporting documents. Passport, remaining period of stay, age, and online identity-verification requirements vary. A tourist product may have a different document list.
Confirm a payment method you already have Ask whether your overseas card is accepted for recurring payments, or whether a Japanese bank account is needed. Sakura Mobile advertises overseas credit/debit payment without a Japanese bank account. A debit-card logo alone is not proof of acceptance by every carrier.
Check your exact phone model Confirm the phone is carrier-unlocked, supports the selected network and voice service, and accepts the required physical SIM or eSIM. Regional variants differ. Use the carrier's compatibility list, especially for an imported handset.
Choose a new number or a number transfer A first Japanese contract normally needs a new number. MNP transfers an eligible existing Japanese mobile number, not your overseas number. Match the subscriber name and follow the new carrier's transfer instructions.
Activate and test before relying on the line Use a trusted Wi-Fi connection for eSIM installation, follow the activation and APN instructions, then test mobile data, an ordinary call, and SMS on a voice plan. Choose the correct default lines on a dual-SIM phone and check overseas roaming settings. Never place a test call to an emergency number.

General information only. Confirm current plans, identity requirements, compatibility, coverage, payment methods, and cancellation terms with the provider before applying.