Standardize US Phone Numbers: Multiple Formats & Validation

Validates and standardizes US phone numbers from various inputs, handles extensions, and outputs in E.164, national, and other formats for seamless data cleaning.

This n8n workflow automates the standardization of US phone numbers, accepting inputs in common formats like (555) 123-4567, 555.123.4567, +15551234567, or with extensions like 5551234567x890. It strips non-numeric characters, validates the core 10-digit number (with optional +1 or 1 prefix), and generates multiple standardized outputs if valid. The workflow first parses the input to separate the main number and any extension. Validation ensures US compliance: correct length after stripping and
Platform
n8n
Category
HR Management
Price
$12.99
Creator
Omar Karlsson

How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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