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This article may contain affiliate linksLearn more[Definitive Guide] How to Get a SIM Card in Japan: Can You Apply Without a Residence Card?
Published on November 24, 2025
Updated on June 11, 2026
Author:Yushi Yamamoto
Essentials
Updated against official, partner, and reviewed site evidence where available.
Last updated: June 11, 2026
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For many foreigners, the biggest hurdle to getting a SIM Card in Japan is the "Required Documents"—specifically, the Residence Card (Zairyu Card).
"My Residence Card hasn't arrived yet." "I don't have a Japanese credit card."
If you are in this situation, don't worry. There are ways to get a Japanese phone number without these hurdles.
In this guide, we compare 3 pro-selected services (GTN, Mobal, JP Smart SIM) that allow you to sign up without a Residence Card or credit card, helping you navigate the "chicken and egg" problem of starting life in Japan.
If you are in a hurry, here is the quick answer based on your situation.
| Your Situation | Best Choice | Why & Warnings |
|---|---|---|
| Pre-arrival / Short-term | Mobal | [Easiest] Pick up at the airport with just your passport. ⚠️ Note: Data speeds can be slow recently. Not recommended for long-term heavy users. |
| No Japanese / No Credit Card | GTN Mobile | [Best Support] Support in 7 languages & Convenience Store payment OK. ⚠️ Speeds may drop during lunch hours, but the lifestyle support is top-tier. |
| Data Only / Budget Focus | JP Smart SIM (Data) | [Most Stable] Uses the reliable Docomo network. ⚠️ The Voice Plan uses a 050 number, which cannot be used for bank accounts. Data-only is recommended. |
When signing up for a SIM card with a voice number (070/080/090) in Japan, strict identity verification is required by law (Mobile Phone Improper Use Prevention Act). Usually, the Residence Card is the only ID trusted by major carriers, making it a mandatory requirement.
However, the following three companies have unique systems to solve this problem for expats.
Operated by a company specializing in support for foreigners, GTN Mobile is a popular "first SIM" choice.
🗣️ User Voices (Real Reviews)
✅ Good:
- "I couldn't speak Japanese at all, but they helped me via chat in English. Great service for foreigners." (Source: Reddit)
- "Being able to pay at a Konbini before I got my credit card was a lifesaver."
⚠️ Bad:
- "The staff attitude at the physical counter wasn't great."
- "Internet speed can get slow during crowded times like lunch breaks."
Mobal is the savior for those who "don't have a Residence Card yet."
🗣️ User Voices (Real Reviews)
✅ Good:
- "Picked up my SIM at Narita Airport in 10 minutes. The English setup guide made it super easy." (Source: Reddit)
- "Best choice for short trips or working holidays since there is no contract tie-in."
⚠️ Bad:
- "Recently, data speeds have been very slow (sometimes under 1Mbps). I struggled even opening Google Maps." (Source: Reddit r/JapanTravelTips)
- "Be careful with the 'Unlimited Calls' plan. It's only free between Mobal users. Calling other numbers can result in a huge bill."
JP Smart SIM uses the NTT Docomo network, known for its stability and coverage.
🗣️ User Voices (Real Reviews)
✅ Good:
- "Since it's the Docomo network, the signal is stable even in subways and rural areas."
- "I've used it for 5 years. Paying at the Konbini is easy and I've had no major issues." (Source: Reddit r/japanlife)
⚠️ Bad:
- "The phone number for the Voice Plan starts with '050' (IP Phone). You cannot use this for opening bank accounts or calling emergency services (110/119)."
- "Speed restrictions are strict after you use up your data cap."
| Feature | GTN Mobile | Mobal | JP Smart SIM |
|---|---|---|---|
| Residence Card (Voice) | Required (Not for Prepaid) | Not Required (Passport OK) | Required |
| Residence Card (Data) | Not Required | Not Required | Not Required |
| Payment Methods | Card, Konbini, Transfer | Card, PayPal | Card, Konbini, Alipay |
| Contract Binding | None | None | None |
| MNP (Keep Number) | △ (Depends on plan) | 〇 (Specific plans only) | 〇 (Call SIM only) |
| Network | SoftBank / Docomo etc. | SoftBank (Main) | Docomo |
Basically, all 3 companies mentioned here have "No Contract Binding & No Cancellation Fees." Just make sure to check the cancellation deadline (e.g., by the 25th of the previous month) if you decide to leave Japan.
Without a SIM card, you can't open a bank account, rent an apartment, or even apply for a part-time job.
We strongly recommend securing your "first phone number" with Mobal or GTN Mobile first. Once your life settles down, the smartest strategy is to switch to a cheaper plan later.
We are rooting for a smooth start to your new life in Japan!
After comparing SIMs
This internal guide keeps first-week setup and bank-account routes close by while you compare SIM options with different ID conditions. It does not judge eligibility or approval.
You might need this information again. Bookmark this page to access it anytime.
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A: Yes. GTN Mobile, Mobal, and JP Smart SIM all allow foreigners to sign up using only a passport. You do not need a Residence Card, Japanese bank account, or Japanese credit card for these providers.
A: Yes, provided it comes with a real 080/090 number (not a VoIP 050 number). GTN Mobile and Mobal both issue 080/090 numbers that pass Japanese bank SMS verification.
A: Yes. Tourists can buy tourist SIMs at airports and convenience stores (IIJmio, Docomo tourist SIM, etc.). These typically offer data only (no voice number) and are valid for 7–30 days. For a voice number or long-term use, GTN Mobile or Mobal are better options.
A: For Mobal: just a passport. For GTN Mobile: passport and a contact email address. For JP Smart SIM: passport or any government-issued ID. No Residence Card, address registration, or Japanese documents are needed for these three.
A: Yes. After you get a Residence Card with your address printed on the back, you become eligible for major carrier plans (Rakuten Mobile, Softbank, Docomo) and MVNO plans like IIJmio with better pricing. Providers like GTN Mobile remain available to both Residence Card holders and non-holders.
CEO / Native Japanese Expert
Updated on: June 11, 2026
※ The information in this article is accurate as of the time of writing. Laws and regulations may change, so please always check official sources for the latest information. We assume no liability for any damages resulting from the content of this article.
