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
Maxim Luong
phone-validation
us-phone
data-standardization
extension-handling
e164-format
crm-automation
sms-prep
hr-tools
data-cleaning
n8n-workflow
How to import this workflow into n8n
1Purchase or download the workflow to get the n8n workflow JSON file.
2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
3Open each node marked with a credential warning and connect your own accounts and API keys.
4Run the workflow once manually to verify the data flow, then toggle it to Active.