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Phone Number Formatter

Normalize phone numbers into clean E.164, international, or national formats for CRMs, SMS tools, and signup forms.

International Phone Number Formatter & Validator (E.164)

Standardize your phone number lists with our intelligent formatter. This tool parses, validates, and formats phone numbers from over 200 countries into standard E.164, International, or National formats. It's essential for CRM data cleaning, ensuring SMS delivery, and unifying customer contact databases. We use Google's libphonenumber library for industrial-grade accuracy.

How it Works

  • 1Paste a phone number (e.g., '1 555 123 4567') or a list of numbers.
  • 2Select a default country code if your input lacks country prefixes.
  • 3The tool parses the number and checks its validity against regional rules.
  • 4It outputs the number in E.164 (+15551234567), International, and National formats.
  • 5Copy the results individually or as a clean list.

Key Features

E.164 Standardization: formatting required for Twilio/AWS SNS.
Validity Checking: detects impossible numbers (wrong length, invalid prefix).
Carrier Detection: identifies if a number is Mobile, Landline, or VoIP (where supported).
Bulk Processing: clean up entire CSV columns of phone numbers.
Country Code Lookup: auto-detects country from the prefix.

Common Use Cases

CRM Cleanup: Fix messy user-entered phone data in HubSpot or Salesforce.SMS Marketing: Ensure numbers are E.164 compliant before sending campaigns.Database Migration: Standardize contact formats during system upgrades.User Verification: Validate phone inputs on signup forms.

Frequently Asked Questions

Everything you need to know about using this tool effectively and securely.

Q.What is E.164 format?

E.164 is the international telephone numbering plan that ensures each number is globally unique. It typically looks like `+<country_code><subscriber_number>` (e.g., +14155552671).

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Phone Number Formatter (E.164, National, International) | CleanTextLab