Title: International SMS URL: https://www.infobip.com/sms/international # Reach customers across borders reliably with Infobip’s international SMS service Use a single international SMS API to reach 190+ countries through 800+ direct operator connections. Built to scale with redundancy, failover, and real-time analytics so you stay in control, even at peak traffic. [ Sign up for free ](/signup?signup_source=InfobipProductPageSMS) [ Contact an expert ](/contact) ## What is international SMS? International SMS is an application-to-person (A2P) SMS sent across country borders. Unlike domestic SMS, it crosses multiple networks and regulatory frameworks, so sender IDs, consent, and routing must align with each country’s rules to maintain delivery and trust. 4.3 billion interactions During Cyber Week 2024, Infobip enabled over 4 billion international SMS interactions, connecting businesses with customers worldwide. 241 billion messages Infobip delivered 241 billion SMS messages globally in 2024, ensuring reliable communication across borders. 800+ connections With over 800 direct connections to mobile carries globally, we ensure reliable international SMS delivery to users everywhere. ## Key features and benefits of Infobip’s platform ### Global reach with local expertise Direct connectivity, with local sender guidance, and country-specific compliance support. ### Reliability and performance at scale Smart routing, redundancy, and failover for high deliverability and low latency. ### Built-in compliance Easily align sender IDs, consent, quiet hours, and content rules per country. ### Developer-friendly integration Simple HTTP API and SDKs, delivery reports, and clear error codes. ### End-to-end visibility Real-time analytics and transparent reporting to monitor, optimize, and scale your messaging. ## Supporting all use cases ### Promotional SMS Share offers, discounts, and product launches instantly to a global audience through Infobip’s international SMS service. [ Explore promotional SMS ](/sms/promotional-sms) ### SMS 2FA Protect your customers’ accounts with SMS 2FA (two-factor authentication) or SMS OTP and boost security. [ Explore SMS 2FA ](/sms/2fa) ### Transactional SMS Set up automated SMS flows, like welcome text messages, order confirmations, updates, and more. [ Explore transactional SMS ](/sms/transactional-sms) ### SMS reminders Ensure your customers never forget important dates or appointments by sending text reminders over SMS. [ Explore SMS reminders ](/sms/reminders) ### SMS notifications Keep your international customers informed with timely updates about important events and processes. [ Explore SMS notifications ](/sms/notifications) ### SMS marketing Create impactful international SMS campaigns tailored to each audience. [ Explore SMS marketing ](/sms/marketing) ## How international SMS works 1. Your app makes a request to our international SMS API. 2. Our platform validates the request, applies country rules, and selects the optimal route using direct carrier connections. 3. The message is handed off to the local mobile network and delivered to the handset. 4. Delivery reports return to your system via pull or push so you can track outcomes and retries. ## Steps to get started with Infobip Get started with international SMS by following this simple step-by-step process. ### 1. Set up your account Create your workspace, choose HTTP/S or SMPP, and get credentials so your app can call the SMS API. [ Sign up to get your API key ](https://www.infobip.com/signup) ### 2. Choose your sender Pick long code, short code, toll-free, or alphanumeric based on your target countries and whether you need two-way replies. US and Canada typically require dedicated registration. [ Read more about senders ](https://www.infobip.com/signup) ### 3. Validate coverage and rules Check country availability, local compliance requirements, and quiet hours before launch to avoid filtering. [ Check out our SMS coverage ](https://www.infobip.com/docs/sms/get-started#senders) ### 4. Format numbers correctly Normalize your database and remove invalid entries to improve delivery rates and reduce waste. [ Read more about number formatting ](https://www.infobip.com/docs/sms/deliverability#number-formatting) ### 5. Send a test message Verify delivery, encoding, and routing with a small batch before scaling. Use real-time analytics and reporting to confirm results. [ See our SMS API docs ](https://www.infobip.com/docs/api/channels/sms/send-sms-message) ### 6. Enable delivery reports Set up pull or push callbacks to your endpoint so you can monitor outcomes, track errors, and optimize in production. [ Explore SMS message reports ](https://www.infobip.com/docs/api/channels/sms/logs-and-status-reports/receive-outbound-sms-message-report-v3) ## What to keep in mind Here are some key things you should consider when sending international SMS. ### Country-by-country constraints & routing challenges International SMS rules vary widely by destination. Sender ID formats, registration, quiet hours, content policies, and route enablement differ by country and operator. Plan these constraints before you send international SMS via API to avoid filtering, delays, or blocks. Read more ### Sender ID types and registration Picking the right sender is critical to deliverability, trust, and compliance when you send international SMS. Infobip supports numeric senders (long codes and virtual long numbers), short codes, and registered alphanumeric sender IDs. Read more ### Encoding, segmentation and message composition rules Get message length, parts, and character sets right to control cost and improve delivery when you send international SMS via API. The choices you make here determine how many parts your SMS uses and whether carriers can display it correctly. Read more ### Deliverability and optimization Get delivery right before you scale international SMS. Follow these practical steps to improve deliverability, reduce latency, and control costs when sending international SMS via API. Read more ### Messaging costs & rates International SMS costs depend heavily on the destination country. Each country or region may have its own pricing, which is influenced by local regulations, sender requirements, and the choice between one-way or two-way SMS traffic. Read more ## Frequently asked questions about international SMS In business SMS messaging (A2P), international SMS refers to text messages sent through a web platform or SMS API to recipients in other countries. These messages are delivered via an A2P (Application-to-Person) messaging provider, like Infobip, which connects to mobile carriers around the world. To learn more, read our guide on getting started with SMS. International SMS is commonly used for customer notifications, marketing campaigns, two-factor authentication (2FA), and transactional updates, enabling businesses to connect with audiences worldwide. SMS is a highly effective way to reach international customers because it is compatible with virtually all mobile devices and does not require internet connectivity, ensuring reliable message delivery across different countries and regions. The cost of an international SMS service depends on factors like the destination country, message volume, sender type, and specific use case. We offer flexible, pay-as-you-go pricing for SMS, allowing you to sign up for free and top up your account as needed. For detailed pricing tailored to your international messaging needs, feel free to contact our team. Absolutely. The type of number you can use to send international SMS depends on the country where you want to register the sender. Infobip can assist you with the entire registration process, ensuring compliance and seamless messaging in any country you choose. Infobip supports three types of sender IDs: virtual long numbers (e.g., 385981234567), alphanumeric sender IDs (e.g., InfoSMS), and short codes (e.g., 123456). Each type has different features, costs, and registration requirements based on local regulations. Read more about SMS senders and numbers here. Yes. Infobip helps you navigate local compliance regulations, ensuring your messages meet all legal requirements. Learn more about SMS coverage and country requirements here. Common causes include unregistered or disallowed sender IDs, prohibited content, missing opt-in/opt-out, quiet-hour violations, or template/signature mismatches. Read about SMS deliverability and compliance guidelines here. ## Start sending SMS internationally with Infobip Reach your customers with Infobip’s trusted international SMS messaging solutions. [ Try for free ](/signup?signup_source=InfobipProductPageSMS)[ Contact an expert ](/contact)