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Japan +81

International code · Asia

Key facts

International code+81

International format+81 X XXXX XXXX

Mobile prefixesXX XXXX XXXX

Mobile length10 digits

Landline format0X XXXX XXXX

Domestic trunk0

Number ranges & quality

Range	Type	Notes
`090 / 080 / 070`	Mobile carrier	语音手机号段，由持有基站牌照的 MNO（docomo / au / 乐天等）发放；格安卡（MVNO）拿到的也是这些段——日本制度下 MVNO 不能直接取得语音号段，只能从 MNO 批发。带号转网后号段不变，所以号段只反映最初发号方
`050`	VoIP	IP 电话。办不了银行开户，多数票务/会员系统直接拒绝，收不到短信是常态
`020`	Data-only	数据专用（M2M），不能语音也不能短信
`060`	Other	総務省规划自 2026 年 7 月起作为语音手机号段启用，是否已实际放号需再确认

Intl SMSStable

Virtual-number riskLow

ID required办卡需身份证明与在留卡/住址证明，实名严格；短期游客可选的实体卡渠道有限

090/080/070 的实体卡注册一切正常。050 开头是 IP 电话，注册 ChatGPT / WhatsApp 这类要收短信的服务基本没戏——这是日本最容易踩的坑。

Sign-up availability

What to expect when signing up for these services with a physical SIM from this country:

ChatGPT Works

Claude Works

WhatsApp Works

Telegram Works

LINE Works

WeChat Works

X Works

TikTok Works

Gemini Works

Applies to every platform: VoIP / virtual numbers and heavily-reused number pools get rejected. Physical SIM only.

Checked 2026-09-12. Platform region policies and number-range allocations change — always confirm against each platform’s official supported-regions list and the carrier’s notices.

Sources：www.soumu.go.jp/menu_news/s-news/01kiban06_02000129.html · www.soumu.go.jp/main_content/000751827.pdf · help.openai.com/articles/7947663

Calling Japan from abroad

Dial +81, then the local number with the leading 0 stripped. A Beijing landline 010-1234-5678 is dialed as +81 10 1234 5678.

Generate the full number →

Dialing within Japan

For domestic long distance dial 0 first, then the area code. Local calls and mobiles: dial directly.

Elsewhere in Asia

Traveling to Japan? Get a SIM card

eSIM providers like Airalo and Holafly charge by the day and work the moment you land. Common picks below:

Affiliate links pending — sign-up under review.