---
title: What phone number format should I use?
description: "Use a valid mobile number your account can send to, typically with country code (for example `9198xxxxxxxx` for India). Blank numbers are skipped. Invalid numbers fail at send time and can be marked FAILED if a status column is set.…"
url: "https://www.smsgatewaycenter.com/blog/kb/what-phone-number-format-should-i-use/"
updated: "2026-08-17"
category: Integrations / Google Sheets Integration / Sending Messages
---

# What phone number format should I use?

Use a valid mobile number your account can send to, typically with country code (for example `9198xxxxxxxx` for India). Blank numbers are skipped. Invalid numbers fail at send time and can be marked FAILED if a status column is set.

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