Validate and Standardize Phone Numbers

Enable your systems to instantly check phone numbers upon user input to both auto-validate at point of entry and retrieve its location information. Our API will parse any number string input and return the standardized phone number format for the target location, including international phone numbers.

Phone Number Validation

Retrieve information such as phone number type, and return standardized phone number output with support for international numbers.

Highly Scalable APIs

Call our APIs natively from over 10 different programming languages.

Enhanced Support

Contact our support team around the clock for assistance and guidance.

800 free API calls/month, with no expiration

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Phone Validation

Validate and parse global phone numbers.

Phone Number:

Phone Valid?


Phone Type





+1 800-463-3339

National Format

(800) 463-3339

Country Code


Country Name

United States

Cloudmersive APIs power over 1,000 of the world's smartest businesses, including:


Phone Validation

Validate phone numbers for verification.
Phone number type detection.
Parse and standardize input numbers into a common format.
International number support.

Verify Phone Numbers

Great Documentation and Client Libraries

C# / .NET / .NET Core, Java, Node.JS, Python, PHP, Ruby, Objective-C, Drupal client libraries available.
Full documentation
Swagger/OpenAPI specifications

Interactive Docs Read Docs and Examples .NET Java Node.JS Python PHP Ruby Objective-C Drupal

Satisfied Customers

"Cloudmersive has become our strategic partner in full life cycle document processing, from create and capture, to OCR, to virus and sensitive content scanning, to report generation. This has really taken our business results to the next level, reducing costs and streamlining our systems. We have also really appreciated top-notch support."

-J. Li, Pyriform Group

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Flexible Deployment

Use Cloudmersive APIs from the cloud, or deploy Cloudmersive APIs to the edge, a private cloud, your on-premise data center, or a custom public cloud instance when needed to enable key scenarios for latency, compliance, security and control.

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800 free API calls/month, with no expiration

Get started now! or Sign in with Google

Questions? We'll be your guide.

Contact Sales