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Delivery agent
API key · Customer operations teamALAlex Lee AdminPermissions updated
SMS to Japan.
Dialing code +81 · Asia. Review the recorded SMS sender capabilities and country requirements for Japan.
Part of Bird SMS. Compare the sender and operational requirements across your markets.
Policy last updated July 13, 2026
What you can send
SMSWhatsApp
Two-way messaging
Supported
Sender types
Compare the sender types listed for this destination, their registration requirements and recorded setup estimates. Confirm availability, throughput and timing for your use case.
| Sender | Activation | Setup time | Sender ID | Notes |
|---|---|---|---|---|
| Short code | Short-code provisioning | Varies | The submitted sender ID is preserved. | Supports two-way replies. |
| Alphanumeric Sender ID | Registration unavailable | No approval wait | Registration is unavailable and the sender ID is overwritten with a random short code. | One-way only. |
| Long code (phone number) | No registration required | No approval wait | The submitted sender ID is preserved. | Supports two-way replies. |
Rules & regulations
Use this recorded country reference to prepare your launch. Requirements can depend on message purpose, sender type, network and recipient location; confirm the applicable rules before sending.
Template approvalNot required
Quiet hoursApply
URLs in content may be filtered and SMS related to Casino/Betting are not allowed in Japan and will be treated as SPAM.
One API
How sending works
Use the same SMS API across supported destinations. Prepare an eligible sender, enable the destination and apply the recipient permission your message requires. Track the accepted message through carrier submission and the delivery reports available for that route.
Sending to Japan, answered
What senders ask before their first message to Japan.
Do I need to register a sender before sending SMS to Japan?
Registration is required for a short code. No registration is required for a long code; confirm availability, ownership and destination access before sending. Registration is unavailable for an alphanumeric sender ID, and the submitted sender ID is overwritten. Work with Bird on short-code assignment, registration and costs. Short codes are country-specific.
Can I use an alphanumeric sender ID in Japan?
You can submit an alphanumeric sender ID, but registration is unavailable and the carrier overwrites it before delivery.
Can I receive replies from Japan?
Yes, if you send from a short code or a long code. Replies are delivered to you as signed webhooks.
Are there quiet hours for SMS in Japan?
Quiet hours are recorded here. Confirm the applicable sending window for your message purpose and recipient location.
What other channels can Bird reach Japan on?
WhatsApp and Voice, from the same account and API.
The rest of the SMS platform
One API, one set of keys. Explore the other capabilities.
Sender-ID registrationPre-register alphanumeric and dedicated senders where countries require it.RoutingDestination controls, carrier connectivity and reported routing outcomes.NumbersLong codes, short codes, toll-free, and alphanumeric sender IDs.SendingThe send API: segments, Unicode safety, batch, and idempotency.Two-wayInbound SMS and conversational replies as HMAC-signed webhooks.All destinationsCoverage, sender types, and rules for every country Bird reaches.
Scale without
losing control.
Organize teams in workspaces, control API access, and trace changes through audit logs.
HarborOrganizationActive
Audit log
Production- Workspace
- Production
- Resource
- Delivery agent
- ReadRead & write
Team Customer operationsActor role AdminOutcome SucceededTime 22 Sep, 09:42:18 UTC
Succeeded