Guides & articles
Phone Number & SMS
Data-only eSIMs usually do not include a phone number or SMS. This hub explains how phone numbers, SMS verification, and ID checks work abroad, and the alternatives when you need a number.
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Cant Receive SMS Verification Codes Abroad? Data-Only eSIMs and Two-Factor Authentication
海外でSMS認証ができない原因（データ専用eSIMには電話番号がない）と対処法（デュ…
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How to Keep Your Home Phone Number While Studying Abroad (Number Parking, eSIM & Apps)
海外留学中に日本の電話番号を維持する方法（番号保管・eSIM併用・VoIP）を整理。…
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Phone Numbers for Working Holidays & Long-Term Study Abroad: What You Actually Need, From Arrival to Settling In
ワーホリ・長期留学の電話番号事情を場面別に解説。到着直後はデータ専用eSIM、銀行・…
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When Do You Actually Need a Local Carrier Phone Number? The Reality of Banking, Government, and School Setup
現地キャリアの電話番号はいつ必要？銀行・政府・学校手続きなど番号を求められる場面を整…
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What Is a VoIP Number? Why Banks and Verification Sometimes Reject It — and How to Prepare
VoIP番号とは何か、なぜ銀行などの認証で使えないことがあるのかを解説。安全のための…
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Pre-Departure Checklist: Setting Up Mobile Data (eSIM) and Phone Numbers
渡航前チェックリスト｜データ通信(eSIM)と電話番号の準備をまとめて解説。対応端末…
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What About a Phone Number While Studying Abroad? Data-Only eSIMs vs. Phone-Number (VoIP) Apps
留学中の電話番号はどうする？データ専用eSIMと電話番号アプリ(VoIP)の違いを解…
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Do You Need a Phone Number to Study Abroad? How to Choose Between a Data eSIM, Calling Apps, and a Local SIM
海外留学に電話番号は必要？データ専用eSIM・電話番号アプリ(VoIP)・現地SIM…
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Can You Use a Phone Number With Just an eSIM? Calls, SMS, and Verification Explained
eSIMだけで電話番号は使える？データ専用eSIMと電話番号の関係、通話・SMS・S…
