Enhancing Data Accuracy With Phone Number Validator API

by | Jun 14, 2023

In today’s world, data plays a significant role in decision-making and business operations. However, with the sheer volume of data, ensuring its accuracy can take time and effort. Data accuracy issues can lead to wrong decisions, wasted resources, and lost revenue. Therefore, it is essential to have mechanisms to validate and enhance data accuracy. One such mechanism is the phone number validator API Integration.

A phone number validator API is a tool that can automatically validate data against pre-defined rules, ensuring its accuracy and completeness. By integrating phone number validator API into your data processing workflows, you can significantly reduce errors and ensure data accuracy.

This blog will discuss how Numverify validator API Integration can enhance data accuracy. So what are you waiting for? Let’s continue reading till the end.

Why Is It Important to Have Accurate Data?

Accurate data is essential for businesses to make informed decisions, plan strategies, and achieve their objectives. Here are some reasons why it is crucial to have accurate data:

Better Decision-making

Inaccurate data can lead to poor decision-making, which can have far-reaching consequences for a business. Accurate data enables decision-makers to make informed choices based on reliable information.

Improved Customer Experience

Accurate data ensures businesses understand their customer’s needs and preferences. This helps businesses tailor their products and services to meet customer needs, improving customer satisfaction.

Increased Efficiency

Accurate data can help businesses streamline their operations and improve efficiency. Businesses can reduce waste, optimize resources, and save costs by eliminating errors and inconsistencies.

Better Risk Management

Inaccurate data can lead to incorrect risk assessments, severely affecting businesses. Accurate data enables businesses to identify potential risks and take appropriate measures to mitigate them.

Regulatory Compliance

Many industries have regulations and compliance requirements that businesses must adhere to. Accurate data is essential for meeting these requirements and avoiding penalties and fines.

How Can Numverify Validator API Increase the Accuracy of Data?

Here are some ways in which Numverify Validator API can enhance data accuracy:

Numverify Validator API can validate phone numbers by checking the format, area, and country codes. It can also detect fake or invalid numbers, reducing the chances of errors in your data.

It can verify phone number information by checking whether the number is active, the carrier, and the geographic location. This can help businesses ensure that they have the correct contact information for their customers, improving the accuracy of their customer database.

Numverify Validator API can help businesses generate high-quality leads by ensuring that the phone numbers collected are accurate and valid. This can increase the effectiveness of marketing campaigns and improve the overall conversion rate.

It can also help businesses detect fraudulent activity by identifying fake or invalid phone numbers. This can help prevent fraudulent transactions and protect businesses from financial loss.

How Does Numverify Validator API Work?

Here’s how the Numverify validator works:

The first step in using Numverify Validator API is to input the phone number that needs to be validated. This can be done via an API request that includes the phone number. Note that you must have an account on the Numverify website since it will give you an API key. Using that API key, you can integrate the Numverify API into your application.

It’s very simple to make a number verification request to the Numverify API. This is an example of a most basic API request:
    ? access_key = YOUR_ACCESS_KEY
    & number = 14158586273

You can try it yourself by getting a Free Plan. Don’t forget to attach your Access Key to the URL.

Numverify Validator API checks the phone number against pre-defined rules to ensure it is in the correct format, including the correct country code, area code, and prefix. This helps to identify any errors in the phone number and eliminate them.

After the phone number is validated, Numverify Validator API verifies the phone number information, such as whether the number is active, the carrier, and the geographic location. This helps to ensure that the phone number is accurate and up-to-date.

Once the phone number is validated and verified, Numverify Validator API returns the results of the validation and verification process. This can include information such as whether the phone number is valid, the carrier, the location, and other relevant information. For instance, you can see an example response returned through Numverify under:

    "valid": true,
    "number": "14158586273",
    "local_format": "4158586273",
    "international_format": "+14158586273",
    "country_prefix": "+1",
    "country_code": "US",
    "country_name": "United States of America",
    "location": "Novato",
    "carrier": "AT&T Mobility LLC",
    "line_type": "mobile"

Learn more about Numverify Phone Number Reverse Lookup API in our comprehensive documentation.

What Are the Best Practices for Using Validator API?

Here are some best practices to consider when using a validator API like Numverify Validator API:

Understand the API Documentation

Before using a validator API, reading and understanding the API documentation is essential. This can help you understand the API’s capabilities and limitations and the proper syntax and formatting for API requests and responses.

Validate Data at the Source

To ensure the highest data accuracy, it’s best to validate data at the source. This means validating phone numbers as they are entered or collected rather than waiting until later in the data processing workflow.

Use Validation Rules

This can help to eliminate errors and inconsistencies and improve the accuracy of your data.

Set Up an Automated Validation Process

To ensure consistent and accurate data validation, it’s best to set up automated validation using an API like Numverify Validator API. This can help save time and reduce errors in data processing workflows.

Monitor Results

It’s essential to monitor the data validation results to ensure that it works correctly and provides accurate results. This can help identify any issues or errors that may arise and allow for a quick resolution. You must be able to parse the JSON LD response in the results.

Maintain API Security

Ensure the API is secured with proper authentication and encryption to protect sensitive data from unauthorized access or interception.


Data accuracy is critical for businesses to improve customer satisfaction and prevent financial loss. Numverify Validator API is a powerful tool to help us validate and verify phone number information in real-time. Moreover, it can also help us reduce errors and improve our data’s accuracy.

By following the best methods and practices, businesses can ensure the highest level of data accuracy. However, choosing a reliable validator API is essential to get accurate results. Numverify by APILayer comes with advanced features and higher security, and we can integrate it into our applications without any complications. The best part is that Numverify has more than 90% satisfied customers.


How Does a Validator Work?

It takes an input such as a phone number and then checks it against specific rules. Some validators also use boolean parameters to validate the requested void data and description.

Is NumVerify free?

NumVerify is a free and powerful REST API. Using the most recent international numbering plan databases, it offers both national and international phone number validation.

How Many Types of API Validation Are There?

There are several types of API validation, including unit testing, integration testing, functional testing, and security testing.

Why Is API Validation Important?

API validation is important to ensure that an API works as expected, delivers accurate results, and is secure and reliable.

Get started with Numverify Validator API today and enhance the accuracy of your data with real-time phone number validation – try it now!