Reach customers across borders reliably with Infobip’s international SMS service

• What they are: Memorable 4-6 digit numbers for high-volume messaging. Used for one-way campaigns or two-way programs, depending on country rules.
• When to use: High throughput at scale, brand recognition, voting, alerts, or programs that need consistent, carrier-vetted delivery.
• How to get: These are leased and approved with local carriers. Timelines vary by market and may require a local entity for setup and two-way (for example, certain African markets).
• Notes: Some countries restrict use cases or require specific opt-out formats on promotional traffic. Validate country requirements first.

• What they are: Memorable 4-6 digit numbers for high-volume messaging. Used for one-way campaigns or two-way programs, depending on country rules.
• When to use: High throughput at scale, brand recognition, voting, alerts, or programs that need consistent, carrier-vetted delivery.
• Provisioning: Leased and approved with local carriers. Timelines vary by market and may require a local entity for setup and two-way (for example, certain African markets).
• Notes: Some countries restrict use cases or require specific opt-out formats on promotional traffic. Validate country requirements first.

• Long codes (VLNs) are standard-length numbers suitable for two-way messaging and local presence.
• Short codes are carrier-provisioned, high-throughput numbers that often require local approvals and distinct timelines.

• Dedicated: Exclusive to your brand. Improves recognition and control across markets.
• Shared: Available in some countries for cost-efficiency, but not suited for programs that need strict brand ownership or compliance guarantees.

• For receiving replies or two-way messaging: Use a virtual long number (VLN) or short code depending on throughput and country norms.
• For brand visibility without replies: Use a registered alphanumeric sender where allowed.
• For scaling across countries: Validate per-country sender availability, approval timelines, and any content or opt-out requirements before you send international SMS.

• United Kingdom: Generic senders are prohibited. Alphanumeric must be at least 3 characters. Only UK VLNs can be registered as numeric senders. Opt-out required on marketing.
• Brazil: Local alphanumeric registration requires a Brazil-based entity and a Letter of Authorization. Uppercase, brand-only, no special characters, max 11 characters. Unregistered senders may be converted to short code presentation.
• China: Long codes only. Signature in 【】 must match registered trademark or company name. Template registration is mandatory and must be an exact match.

For current rules, you can check SMS coverage and connectivity and reach out to our team regarding route enablement.