how to get japanese phone number

3 min read 04-02-2025

Obtaining a Japanese Phone Number as a Tourist or Expat

Getting a Japanese phone number can seem daunting, but it's achievable with the right approach. Whether you're a tourist needing temporary access or an expat settling in for the long term, this guide will walk you through the various options.

Option 1: Tourist SIM Cards – Temporary Solution for Visitors

For short-term stays, a prepaid SIM card offers convenience and affordability. These are readily available at airports, convenience stores (like 7-Eleven and FamilyMart), and electronics retailers. Major providers include:

IIJmio: Known for its affordable plans and ease of use, even for non-Japanese speakers.
b-mobile: Offers various data packages, often with good value for money.
SoftBank: A major carrier with widespread coverage, but potentially higher prices.
Docomo: Another major carrier, similar to SoftBank in terms of coverage and pricing.

Before purchasing: Check data limits and call options carefully. Consider whether you need unlimited data or a more limited plan. Many plans offer a combination of data, calls, and texts.

Activation: Most SIM cards require a passport for verification. Instructions are usually provided in English.

Option 2: Local Mobile Phone Contracts – Long-Term Solution for Residents

If you're planning a longer stay, a local mobile phone contract provides a more permanent solution. You'll typically need the following:

Residence card (zairyū card): Proof of your legal residency in Japan.
Initial payment: This varies depending on the carrier and phone.
Monthly fees: These cover usage, line rental, and potentially device payments if you're buying a phone on contract.

Major carriers (Docomo, SoftBank, au) and smaller mobile virtual network operators (MVNOs) offer contracts. MVNOs generally offer cheaper plans, but coverage might be slightly less extensive.

Option 3: eSIM – Digital Convenience

eSIMs are becoming increasingly popular. They are digital SIM cards downloaded directly to your phone, eliminating the need for a physical SIM. This option is especially convenient for tourists. Several providers offer eSIMs for Japan, with options for different data allowances. Remember to check your phone's compatibility beforehand.

Option 4: Using Your Existing Number with International Roaming

International roaming allows you to use your existing phone number in Japan. However, this can be very expensive. It's generally only advisable for short trips where data usage will be minimal. Contact your mobile provider to check roaming charges before traveling.

Choosing the Right Option: Factors to Consider

Your choice depends on several factors:

Length of stay: A prepaid SIM card is ideal for short visits. A contract is better for long-term stays.
Data usage: Consider how much data you'll need. Unlimited data plans exist, but they usually cost more.
Budget: Prepaid SIM cards are typically cheaper upfront, while contracts spread the cost over time.
Phone compatibility: Check if your phone is compatible with Japanese networks (frequency bands). Some older phones may not be.

Frequently Asked Questions (FAQs)

Q: Can I use my foreign SIM card in Japan?

A: It might work, but you'll likely incur significant roaming charges. It's best to get a local SIM card or eSIM.

Q: What documents do I need to get a Japanese phone number?

A: For prepaid SIM cards, a passport is generally sufficient. For contracts, a residence card is required.

Q: How do I top up my prepaid SIM card?

A: You can typically top up online, at convenience stores, or using a dedicated app from your provider.

Q: Can I keep my Japanese number if I leave Japan?

A: This depends on your contract terms. Some providers allow you to suspend your service temporarily.

This comprehensive guide helps you navigate the process of obtaining a Japanese phone number, whether you're visiting for a short period or settling down for the long term. Remember to research the various options carefully and choose the one that best suits your needs and budget.