Standardize US Phone Numbers with Multiple Format Options and Validation

Clean, validate, and format US phone numbers — instantly and automatically!

This no-code n8n workflow takes any US phone number input, strips away messy formatting, validates the number, handles extensions, and returns it in multiple standardized formats — ready for use in CRMs, SMS platforms, or web forms.

Perfect for sales teams, developers, or ops leads who need clean, consistent phone number data across systems.

What it does:

📥 Accepts US phone numbers in any common format

🧹 Strips non-numeric characters and separates extensions

✅ Validates country code and number length

📞 Detects and outputs extensions as both number and string

✅ Setup guide & importable automation included

Need help setting it up? We offer full configuration and testing for a one-time fee.