---
title: What format should mobile numbers be in?
description: "Use full international format, including the country code (for example +14155551234). Numbers without a country code may fail to send. ### More Related Articles - [What happens if I bulk-import a large CSV into my table?](https://www.smsgatewaycenter.com/blog/kb/what-happens-if-i-bulk-import-a-large-csv-into-my-table/) - [Will editing an…"
url: "https://www.smsgatewaycenter.com/blog/kb/what-format-should-mobile-numbers-be-in/"
updated: "2026-08-30"
category: Integrations / Airtable Messaging Integration / Sending Messages
---

# What format should mobile numbers be in?

Use full international format, including the country code (for example +14155551234). Numbers without a country code may fail to send.

### More Related Articles

- [What happens if I bulk-import a large CSV into my table?](https://www.smsgatewaycenter.com/blog/kb/what-happens-if-i-bulk-import-a-large-csv-into-my-table/)
- [Will editing an existing record send a message?](https://www.smsgatewaycenter.com/blog/kb/will-editing-an-existing-record-send-a-message-4/)
- [Can one new record trigger multiple channels at once?](https://www.smsgatewaycenter.com/blog/kb/can-one-new-record-trigger-multiple-channels-at-once-2/)

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