Daily Infrastructure/NormalUsually essential

Mobile Phone and Internet Contracts

Check identity, address, payment, minimum term, and cancellation costs before signing.

Who this is for: Residents contracting mobile or home internet
Deadline: Check cancellation and installation deadlines in the contract

Do this todayDecide data, calls, usage period, and whether installation is possible

If the deadline is near or passedIf activation fails, charges differ, or cancellation time is short, contact the provider today with the order number and contract. Call 188 for unresolved consumer disputes.

Where to goCarrier, retailer, and property manager

mobile phoneinternetcontract

Official information checked: 2026-07-18Review status: Reviewed

Step-by-step guide

Follow these steps

Progress: 0/3 completed

1Confirm your case and deadlineDefine the services you need / Compare total contract costs

What to do

1Separate mobile service, device purchase, and home internet; write down data, calls, expected use period, and service availability at your address
2On official provider sites, compare total cost including setup fees, device installments, post-discount price, installation, cancellation, and equipment return

Check before you start

Decide data, calls, usage period, and whether installation is possible
Match residence-card address and payment-name spelling
Compare monthly, initial, device balance, and cancellation costs together

If the deadline is near or passed

If activation fails, charges differ, or cancellation time is short, contact the provider today with the order number and contract. Call 188 for unresolved consumer disputes.

2Prepare the office and documentsCheck identity requirements / Review contract terms

What to do

1Check the selected provider's official identity requirements, such as residence card, address proof, personal phone or email, and payment method
2Before confirming, check term, discount conditions, options, initial cancellation guidance, and separate cancellation contacts for device and service; save the final screen and key terms

Basic items to bring

Residence card
Additional ID such as passport
Payment method in your name
Full building and room address
Employer, school, or emergency contact if requested

Fees

Add the setup, monthly, device, installation, cancellation, return, and post-discount costs shown in the contract.

Online options

For online signup, verify the provider's official domain, identity-check flow, key terms, and confirmation number.

If you cannot go

Identity verification of the subscriber is standard. Ask about family-name, minor, or corporate contracts.

If documents are missing

If a document is missing, do not guess or substitute it. Tell the office its exact name and ask whether you can consult first, submit it later, and where to obtain it.

3Confirm completion and the next deadlineTest activation and billing / Confirm cancellation and equipment return

What to do

1After activation, test calls, data, and the account page; record the contract number, support contact, first billing date, and monthly amount
2When moving or leaving Japan, check service, device installments, and add-ons separately; save cancellation confirmation and equipment-return tracking

Confirm at completion

Calls, data, and authentication work, with all recurring and initial costs confirmed
Cancellation, device return, failure, and loss contacts are saved

What you receive

Confirm the phone number or contract ID, plan, minimum-use and cancellation terms, device or SIM returns, and support channel.

Check before leaving

Before leaving, check your name, address, covered period, and procedure type, then ask about the next deadline and contact method.

Records to keep

Keep the reference number, filing date, office, copies of submitted documents, and next contact date. Save confirmation screens and emails for online filings.

Next action

Add reminders for address, payment, or residence-period updates and for transfer or cancellation when moving or leaving Japan.

Confirm with the official office

This page cannot determine the latest form, appointment and hours, municipality-specific additions, individual review, or same-day handling. Confirm these immediately before filing.
Stay period, ID, payment, device installment, and installation

Important cautions

Screening and documents vary by provider
Even 'effectively free' offers can leave installment balances after cancellation
Request important terms in a language you understand