01 — Regulations
Domestic vs International
Requirements differ by who is sending. Pick the scope that matches your business.
Registration is not required for Japan — traffic can be sent directly through wholesale routing.
Sender capabilities
Alphanumeric Sender IDSupported
Short codeSupported
Long numericSupported
Sender formatAlphanumeric
Approval timeInstant
FeesNo Fees
ScopeDomestic company
Registration requirements
Registration requiredNo
Restrictions
Other Scams
Regulatory
Phishing
Explicit Content
Gambling
Gambling - only OTP allowed. Political and adult content is not allowed.
Sending rules
URL restrictionsNo
OTPNo
Opt-out mandatoryNo
02 — Operators
Operator regulations
4 networks carry SMS traffic in Japan. MNP is live in most markets — run an HLR lookup before routing.
NTT DocomoMCC 440 · Registration not required
KDDI auMCC 440 · Registration not required
SoftBankMCC 440 · Registration not required
Rakuten MobileMCC 440 · Registration not required
03 — Compliance
Additional compliance notes
Country & operator-specific guidance maintained by the Sender ID team.
Requirements
Sender,Content,URL,Company Name, Website.Company name,Contact email,Contact mobile number,Contact person,Estimated monthly volume,
Need help registering your Sender ID?
Our compliance specialists assist with registration requirements, document review, operator approvals, and both domestic and international onboarding.
190+ countriesDomestic & international
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