How to Check the Carrier of a Phone Number

by | May 27, 2024

Today, phone number validation and phone number carrier check processes are actively performed in many business applications. To increase data security, businesses prefer these transactions to verify the phone number owner, especially in important transactions. In addition, businesses do not make SMS messages or information calls to an invalid phone number, and they save both time and money. Recently, there have been check phone number carrier APIs that businesses can use easily. They check the carrier of a phone number by these APIs easily.

These APIs mainly quickly check phone number carrier information. It then provides this information to businesses in a data transfer format. In this article, we will explain what is the phone number carrier information that businesses often need. Then we will introduce today’s most popular phone carrier lookup API and develop an application with this API.

What is a Phone Number Carrier?

Phone number carrier refers to which telecommunication company or operator a phone number belongs to. Phone number carrier information indicates the company or operator that manages the number and provides the service. A telecommunications company or operator is responsible for providing telephone services to people, managing network infrastructure, and providing services to its subscribers.

Businesses use phone number carrier information for many important purposes such as marketing, advertising, phone number verification, and performing analyses.

Numverify API: Check the Carrier of a Phone Number

home page of the numverify phone number carrier check api

Numverify API is a phone carrier lookup API that has become increasingly popular in the market recently. It’s more than just a phone carrier checker API. That chiefly detects invalid phone numbers. If a cell phone is valid, it provides detailed information about it. This API is used by famous companies such as Huawei and Home Advisor in the market.

Numverify API simplifies the process of verifying and updating customer contact information by providing businesses with a comprehensive number verification service. This service reports the validity of phone numbers from 232 different countries in a detailed JSON format. JSON format contains detailed information such as whether the phone number is valid or not, local and international formats, the country the number belongs to, its location, carrier name, and line type. This wide range of information allows businesses to have more precise and accurate data about their customers, thus minimizing communication problems that may occur due to incorrect or invalid numbers.

This detailed verification service offered by numverify API provides a great advantage, especially in industries where customer database management is critical. Accurate and up-to-date customer data increases the effectiveness of marketing campaigns and positively affects customer satisfaction and loyalty. Thanks to the numverify API, businesses can regularly update customer contact information and check its accuracy. This increases operational efficiency, strengthens customer relationships, and ensures data accuracy.

Discover how to get started quickly with the numverifyAPI.

This API is a free carrier lookup API. Numverify API offers businesses a reliable, detailed, and free service for phone number verification and operator search. With its free subscription plan, it provides an ideal starting point for small businesses and low-volume users. This plan is limited to 100 requests per month.

How to Use the Numverify Phone Number Carrier Check in a Web App?

In this part, we will develop a web application from scratch using the numverify API. With this application, we will take the phone number and country code fields from the user to show carrier information as output. Then we will request this information to the API provided by numverify and print the carrier information we get from there.

Enhance your business performance with the phone number verification API!

Before we start developing the application, we need to have an API key. We will obtain this API key by signing up for one of the economically priced subscription plans provided by numverify.

Now, we can develop our application. Let’s open a file in the computer and name it ‘phone-number-carrier-check.html’. Then let’s paste the following codes into this HTML file:

<!DOCTYPE html>
  <title>Phone Number Carrier Lookup Application</title>
  <link rel="stylesheet" href="">
    .container {
      margin-top: 50px;
  <div class="container">
    <div class="row justify-content-center">
      <div class="col-md-6">
        <div class="card">
          <h5 class="card-header">Phone Number Carrier Lookup Application</h5>
          <div class="card-body">
            <form id="validationForm">
              <div class="form-group">
                <label for="numberInput">Phone Number:</label>
                <input type="text" class="form-control" id="numberInput" placeholder="Ex: 1234567890" required>
              <div class="form-group">
                <label for="countryCodeInput">Country Code:</label>
                <input type="text" class="form-control" id="countryCodeInput" placeholder="Ex: TR" required>
              <button type="submit" class="btn btn-primary">Check</button>
            <div id="resultContainer" style="display: none;">
              <h6 class="card-subtitle mb-2 text-muted">Result:</h6>
              <p id="carrierResult"></p>

    document.addEventListener('DOMContentLoaded', function() {
      var validationForm = document.getElementById('validationForm');
      validationForm.addEventListener('submit', function(event) {
        var number = document.getElementById('numberInput').value;
        var countryCode = document.getElementById('countryCodeInput').value;

        var endpoint = '';
        var accessKey = 'YOUR-API-KEY';
        var url = `${endpoint}?access_key=${accessKey}&number=${number}&country_code=${countryCode}&format=1`;

          .then(function(response) {
            return response.json();
          .then(function(data) {
            var resultContainer = document.getElementById('resultContainer');
            var carrierResult = document.getElementById('carrierResult');

   = 'block';
            carrierResult.textContent = 'Carrier: ' + data.carrier;
          .catch(function(error) {

Let’s paste the API key we obtained into the ‘YOUR-API-KEY’ field and run the application. After the application is running, let’s enter the phone number and country code from which we want to obtain carrier information and press the ‘Check’ button. The sample output we will get will be as follows:

result of the phone number carrier lookup application

Learn more about numverify API in our comprehensive documentation.

Integrating numverify into Python is also quite simple. For this, we can take a look at the video below:


As a result, today businesses frequently perform number verification and phone number operator control in their applications. They also check the carrier phone numbers of their users to maintain records in the customer database with high accuracy. Although many tools provide these services, finding a tool that provides data with high accuracy and speed can directly contribute to the business development processes of businesses. In this context, numverify is ahead of its competitors with the unique and detailed response it offers in response to a phone number.

Use the free best phone number carrier lookup API, and integrate it into your projects in just a few steps.


Q: What is the Most Popular Phone Number Carrier Lookup Tool List?

A: Developers and businesses can find many phone carrier lookup tool lists in the market today. The most popular of these tool lists includes the following carrier lookup service tools:

  • The numverify API
  • Textr
  • Messente API
  • NumlookupAPI

Q: How Phone Number Carrier Check with an API?

A: Performing phone number carrier checks with an API is quite simple. This API usually takes a country code and phone number as parameters. Then it provides the carrier information of the phone number as an API response.

Q: Is the Numverify a Number Lookup API?

A: Yes, it is. The numverify API is a number lookup API that provides information about phone numbers in JSON format. It provides information such as phone carrier information, location, and country of that phone number.

Q: How Many Country Phone Numbers Does the Numverify API Support?

A: The numverify API supports phone numbers of 232 countries. The data provided by these countries is of high accuracy. It uses information obtained from international numbering plan databases.

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