# How do I send international SMS?

> To send SMS internationally, format every number in full E.164 form (a plus sign, country code, and national number), send through a provider with direct routes to your destination countries, register a sender ID where the market requires it, and account for per-country pricing and content rules. The hard part is not the API call — it is route quality and compliance, which vary sharply from one country to the next.

- Canonical URL: https://www.broadnet.me/answers/how-to-send-international-sms
- Language: en
- Last reviewed: 2026-07-22
- Publisher: BroadNet (https://www.broadnet.me)

## Format numbers as E.164

International delivery depends on fully-qualified numbers: a leading plus, the country code, then the subscriber number, with no spaces or leading zeros. Validate and normalise your list first — an HLR lookup also tells you the current operator and whether the number is reachable. See /answers/what-is-e164 and /products/hlr-lookup.

## Route quality decides delivery

The same message can deliver flawlessly to one country and vanish in another depending on whether your provider holds a direct A2P agreement there. Confirm the route to each priority country is direct, not a grey route. See /answers/what-is-grey-route-sms and /answers/how-to-choose-sms-provider.

## Sender IDs and content rules differ by market

Many countries require alphanumeric sender IDs to be pre-registered, and some restrict content or mandate local templates. Lead times and rules vary, so plan per-market. See /answers/how-to-register-sender-id and the /regulations guides.

## Pricing varies by destination

Each country's operator sets its own A2P termination fee, so per-message cost can vary by an order of magnitude between destinations. Compare cost per delivered message, not headline rate. See /answers/sms-pricing-explained.

## Related

- [All answers](https://www.broadnet.me/answers)
- [Glossary](https://www.broadnet.me/answers)
- [What is E.164?](https://www.broadnet.me/answers/what-is-e164)
- [How do I choose an SMS provider?](https://www.broadnet.me/answers/how-to-choose-sms-provider)
- [How do I register an alphanumeric sender ID?](https://www.broadnet.me/answers/how-to-register-sender-id)
- [How much does A2P SMS cost?](https://www.broadnet.me/answers/sms-pricing-explained)
- [What is a grey route in SMS?](https://www.broadnet.me/answers/what-is-grey-route-sms)
- [A2P SMS](https://www.broadnet.me/products/a2p-sms)
- [HLR Lookup](https://www.broadnet.me/products/hlr-lookup)
- [Coverage](https://www.broadnet.me/coverage)