Global Response
Mobile phone
(international   
  roaming)Global Response
Mobile phone
(international   
  roaming)

• Overseas call and data charges are not covered by the domestic rate plan, free communication, various flat-rate plans (including flat-rate services such as unlimited data plans), or discount services that you subscribe to.
• Depending on the model you are using, the laws and regulations of the country/region you are traveling to may prohibit you from bringing it into the country. Please check the regulations of your destination country in advance.
• Depending on the circumstances of the overseas telecommunications carrier or each region, you may not be able to use the service or communication may be unstable even within the service area. If you are planning to travel or stay in the country, please check the regulations of each country in advance.
• Depending on your contract details and the model of your device, some services may not be available.
• Charges will apply when operating server email (updating lists, deleting emails, etc.) overseas and for some voicemail.
• Data communication may occur automatically without any operation on the device, such as automatic reception of emails, automatic communication functions of various applications, functions that automatically synchronize data on the smartphone, functions that check for the latest software and applications, etc. Depending on the model, the email setting may be initially set to automatically "receive all texts," so we recommend changing the setting to "manual reception" to receive only necessary emails according to usage.
• When making a call overseas, the caller ID displayed to the recipient may not be displayed correctly, such as a phone number that is not yours or a blocked number.
  Also, when receiving a call, the caller's phone number may not be displayed correctly.
• When making collect calls, toll-free calls, credit calls, or prepaid card calls overseas, you may be charged for calls to the country you are staying in addition to the call charges for the service you used.
• If you call a mobile phone from Japan to a mobile phone overseas, the caller in Japan will be charged domestic calling and communication charges.
• When making a call between mobile phones while overseas, the caller will be charged the call and communication fees to Japan.
• If you receive a call at your destination and answer it, you will be charged for the incoming call regardless of the caller.
• When making a call from a mobile phone that is roaming internationally to another mobile phone that is roaming internationally, the caller will be charged the "charge to Japan" and the recipient will be charged the "incoming call charge."
• Charges may also be incurred if you are calling or cannot connect to the other party, or if you fail to connect due to a communication error while using packet communication services (carrier email, web, or mobile data communication).
• If we find that your usage amount has exceeded a certain amount, such as becoming high, we may suspend your service.
• The Overseas Unlimited Packet Plan will not be applied during the period when the Overseas Anshin Flat Rate Plan is applied.
• If you are using the "Unlimited Overseas Packets" service, please cancel the Overseas Anshin Flat Rate service here.
• Once you start using the plan, you cannot cancel it.
• Before the official launch of the service, you may be able to use some of the services of overseas telecommunications carriers. Furthermore, depending on the service content or technical factors of the overseas telecommunications carrier, you may be able to use services of a different generation than the one you have subscribed to in Japan. In this case, you will be required to pay the service fee for the generation you use, and the fee will be incurred at the time you use the service. For S!Mail and Web, the rates are "3G/GSM: 2 yen/1KB" and "5G/4G (LTE): 4 yen/1KB." Depending on the country or region of your destination and your subscription status, an overseas flat-rate packet service may apply. For details on the fees for each overseas flat-rate packet service and overseas calling charges, please click here.

Precautions regarding theft and loss

Your mobile phone has a U SIM Card, an IC chip that stores your phone number and other information. (If you are using eSIM, it is embedded in the smartphone itself.) The U-SIM Card / eSIM is also the basis for billing your usage fees.
In the unlikely event that charges are incurred due to use by a third party, such charges will be borne by the customer.
If your mobile phone is stolen or lost, please contact us immediately.
From overseas: +81-3-6858-2443 (charges apply) / Reception hours: 24 hours

• *The procedure will only be accepted via automated voice response.
• *This office only accepts requests to suspend or cancel lines due to loss or theft.

サービス改定のお知らせ

2026年6月2日より、以下の通り提供条件を改定します。

①定額国L向けプランの改定

（1）データ量上限の増量：3GB/24時間から無制限/24時間に増量します。

（2）プランの拡充：これまでの3種類のプラン（24時間／72時間／96時間）から、利用期間を1日から31日まで1日単位で選択できるプランへ変更します。

②大量データ通信利用時の速度制限の導入

定額国L向けプランでは、2027年春以降の当社が別途ご案内する日より、利用開始時刻から24時間を一つの期間（以下「単位期間」）として、単位期間内のデータ量が10GBを超えた場合は、次の単位期間の開始まで送受信時の通信速度を最大4.5Mbpsに制限します。

③適用条件の変更

下記の条件を満たすお客さまは、本サービスにお申し込みいただいたものとして取り扱います。なお、以下のいずれかの条件を満たすお客さまでも、本サービスを解除した後、再度本サービスに加入する場合には、本サービスへのお申し込みが必要です。

• 2026年6月2日以降に「世界対応ケータイ」への加入を申し込み、かつ対象料金プランに加入している場合