Public APIs
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Cloudmersive Validate

Phone

Validate international phone numbers.

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About Cloudmersive Validate

Cloudmersive Validate offers a Phone Number Validation API that parses phone number input and returns a standardized format for the target location, including international numbers. The API returns details such as validity, phone number type, E164 format, international format, national format, country code, and country name.

Client libraries are available for C#/.NET/.NET Core, Java, Node.JS, Python, PHP, Ruby, Objective-C, and Drupal, alongside full documentation and Swagger/OpenAPI specifications. The API can be called from cloud infrastructure or deployed to the edge, a private cloud, on-premises data centers, custom public cloud instances, PaaS platforms, or government cloud regions.

The service is aimed at developers and businesses needing to validate and standardize user-entered phone numbers, such as for data quality checks during system migrations or user verification workflows. Pricing is listed at $2,000/month, with a free tier of 600 API calls per month with no expiration.

Key features

  • Validates phone numbers and returns standardized formats
  • Detects phone number type (e.g. toll-free, mobile, landline)
  • Parses and standardizes international phone numbers
  • Returns E164, international, and national format outputs
  • Returns country code and country name for a number
  • Client libraries for .NET, Java, Node.JS, Python, PHP, Ruby, Objective-C, and Drupal

Frequently asked questions

Is there a free tier?

Yes, Cloudmersive offers 600 free API calls per month with no expiration.

What does the Phone Number Validation API cost?

The paid plan is listed at $2,000 per month.

What programming languages are supported?

Client libraries are available for .NET, Java, Node.JS, Python, PHP, Ruby, Objective-C, and Drupal.

Can it validate international phone numbers?

Yes, it parses and standardizes phone numbers for international numbers, returning formats like E164, international, and national.

What deployment options are available?

The API can be used from the public cloud or deployed to a managed instance, private cloud, PaaS, or government cloud.

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