How to Implement Numverify API for Phone Number Validation in Your Application
Tags: api, webdev, programming, productivity
Published: 2024-02-08 09:23:34

Have you ever wondered why checking phone numbers is important in your app? There are many scenarios where phone number validation plays an important role. Suppose you want to send a verification code, but the number is incorrect. Chaos, right? That's where the [phone number carrier lookup API](https://numverify.com/) steps in. It helps developers check and gather phone number details. Let's make sense of it together in this guide!

First off, what's a Phone Number Carrier Lookup API? It's like a phone number detective that ensures the numbers in your app are real. Why does it matter? Well, imagine if your app sends info to the wrong number – not cool. We'll break down the whys and hows of using a Phone Number Carrier Lookup API.

Next, we'll uncover how a validation API works in different situations. Are you excited to get started? Let’s begin. 

## What is a Phone Number Carrier Lookup API?
A Phone Number Carrier Lookup API is a phone number detective. It helps you determine which company or carrier serves a particular phone number. For example, let's say you have a friend's number and want to check if you use the same carrier for free texting. That's when the Carrier Lookup API comes into place.

Suppose you're running a shop and send order updates via SMS. With the Carrier Lookup API, you can check if your customer's phone carrier is suitable for sending messages. This way, your messages will be noticed, and your customers will stay informed.

A phone number API fetches data from trustable sources to help you make informed decisions. For example, Numverify supports 232 countries for carrier lookup.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/mfxsim9mxsa3bbjoee3n.png) 

## Why Should You Implement a Phone Number Carrier Lookup API?
Adding a Phone Number Carrier Lookup API to your app can do wonders for your app. It helps things run smoothly and keeps your users happy. 

Suppose you're sending important messages or codes to users through texts. Without the Carrier Lookup API, these messages might not reach them, causing frustration.

_**One big reason to use this API is to make your app more user-friendly. Knowing which phone carrier someone uses helps you send messages the best way possible.**_

Saving money is another amazing benefit of phone number validation. Let's say you have a chat app. With the Carrier Lookup API, you can tell when two users have the same carrier. This means they can text each other for free, saving them cash.

For [businesses](https://blog.numverify.com/why-validating-phone-numbers-is-essential-for-your-business/) using texts to connect with customers, the Carrier Lookup API stops you from wasting money on messages that won't work. If you own a business, you must know the importance of an accurate leads database. If you implement a phone validation functionality, you can validate customers’ numbers at the entry point. 

Let’s explore some more applications of a phone number validation tool.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/rn3w0lf3rqkdow89089h.png)

## What Are the Applications of a Phone Number Carrier Lookup API?
A Phone Number Carrier Lookup API has various practical applications across different areas. We will show you some most popular applications where this API does wonders. 

**✔️Communication Optimization**
In a messaging app, the Carrier Lookup API ensures that users on the same carrier can enjoy free in-network messaging. This optimization enhances the user experience and encourages communication.

**✔️Marketing Campaigns**
For businesses running SMS marketing campaigns, the API helps customize messages based on carriers. This ensures targeted delivery and improves the effectiveness of promotional efforts.

**✔️Cost Savings**
If your application sends SMS alerts or updates, the Carrier Lookup API prevents unnecessary costs. It happens by confirming the validity of phone numbers. As a result, we can also reduce the risk of failed message deliveries.

**✔️User Authentication**
The API ensures authentication codes and verification messages are sent to valid and reachable numbers.

**✔️Fraud Prevention**
For e-commerce platforms, the Carrier Lookup API helps identify potentially fraudulent activities. It becomes possible by verifying the authenticity of provided phone numbers during account creation or transactions.

Let’s explore how you implement a phone number validation tool.

## How Do You Implement a Numverify Phone Number Carrier Lookup API?
To implement an API, the first step is to know your project requirements. For example, the language you are using, the framework, and the other structure of your application. It will help you ensure the chosen API is compatible with your app and selected technologies. 

Next, you should analyze competitors available in the market. Numverify, Mocean API, and Verifone API are the most famous phone number carrier lookup APIs. 

## Numverify
Numverify provides a user-friendly RESTful JSON API for national and international phone number validation. An outstanding feature of Numverify is its extensive coverage. It is spanning across more than 232 countries worldwide.

## Key Features
Numverify plays a crucial role in validating phone numbers ensuring the accuracy of the initial data input. This service strongly [emphasizes security](https://blog.numverify.com/unlocking-personal-security-the-power-of-phone-number-apis/), utilizing robust 256-bit HTTPS encryption.

Furthermore, Numverify employs advanced verification methodologies. It includes line type identification, the latest international numbering plans, and carrier information.

For users on a budget, Numverify offers a free plan allowing the validation of up to 1,000 monthly numbers.

Numverify's premium plan is available at just $14.99 monthly if you require additional features and benefits.

## Implementation
Here is the implementation of Numverify API in Python:

import requests

access_key = 'your_api_access_key'
phone_number = 'number'

response = requests.get('http://apilayer.net/api/validate', params={
    'access_key': access_key,
    'number': phone_number
})

if response.status_code == 200:
    data = response.json()
    print('Phone number:', data['number'])
    print('Valid:', data['valid'])
    print('Carrier:', data['carrier'])
    print('Location:', data['location'])
else:
    print('Error:', response.status_code)


Remember to add the API key when running the above code. 

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/o7i5mopbdyd33yeufmei.png)

## Conclusion
Using the Numverify API in your app for checking phone numbers is a great idea. We learned why it's crucial – preventing chaos and ensuring correct data. We saw how this API helps in many ways: improving communication, improving marketing efforts, saving money, ensuring user security, and stopping fraud.

Looking specifically at Numverify, it's fantastic because it covers many countries. Besides, it keeps things secure and has free and premium plans. We even looked at a simple example of how to use it in Python.

## FAQs

## How Do You Find What Cell Carrier a Phone Number Is?
Use Numverify or Verifone API to [find the carrier of a phone number](https://medium.com/@nicchong/firebase-authentication-with-phone-numbers-a-step-by-step-guide-12dfa9dc9cbd). 

## What Is a Reverse Phone Number Lookup API?
A Reverse Phone Number Lookup API identifies details about a person or business using their phone number.

## How Do I Find Out Who Owns a Phone Number?
Use a reverse phone lookup service or app to determine who owns a phone number.

## Can You See Who Twilio Number Belongs To?
No, the ownership details of Twilio numbers are private. They respect user privacy and data protection regulations.