Phone Number Validator

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About this bot

In short: This phone validator will bulk-check if the phone numbers you’ve provided are valid. It will also provide additional information about each phone number (see below). Works with most countries. 

Click to view the example results file for a better idea of the output.

How to validate phone numbers in bulk? Video tutorial

Watch me demonstrate how to launch the online phone verification tool:

How to do phone number verification online?

Use our simple phone verification app to remove invalid telephone numbers from your list in bulk.

This smart telephone verification service will allow you to grab the following details:

  • Phone
  • Valid (true / false)
  • Number
  • Local format
  • International format
  • Country prefix (e.g. +49)
  • Country code (e.g. DE)
  • Country name
  • Location
  • Carrier (if available)
  • Line type (e.g. mobile)

How to verify a phone number list in bulk?

  • Sign up on Botster
  • Go to the bot's start page
  • Paste the phone numbers list. Each phone number must go on a new line
  • Click the "Start this bot" button

That's it – the online phone number validator tool has started working!

Software walkthrough

1. Open the Launch bot form

Click on the "Start bot" button on the right-hand side of this page to launch the phone number validation tool:

2. Enter the details

Give your "Job" a meaningful title, and optionally specify (or create) a project folder:

3. Specify the country code.

This increases the bot's success rate.

4. Insert the phone numbers list.

Each phone number must go on a new line.

5. Set up notifications

Specify if you would like to receive a notification when the phone validation service is finished checking your numbers list:

6. Start the bot!

Click the "Start this bot" button on the right-hand side:

That's it! You will be taken to your "Jobs" section. Phone verification online is now in progress. The bot will notify you once it’s done.

Data output

After the phone number verification service completes the job you can download your data as an Excel (XLSX), CSV or JSON file.


In some cases, the data such as Carrier, location, etc. won’t be provided and will be left blank. The process entirely depends on the data provider.

The bot only checks the validity of the phone number's format, which means it does not connect to the carrier or calls the recepient to see if the phone number actually belongs to somebody.

To use this bot you need to register or log in first.

Frequently asked questions

A verified phone number is a number that really exists and is currently used by its owner.

Paste your phone numbers list into a special field on the Phone Validator’s start page and launch the bot.

Yes, it is. The Phone Validator bot will tell you which countries the numbers come from.

Endpoint: POST

Request body:

input string or array of strings (required)
Phone numbers

origin string (optional)
Country code
If you know the origin country of the phone numbers, you can specify it here to increase the lookup success rate. For example, US (for the United States), RU for Russian Federation, etc.

Your file is being prepared...