Trusted Phone Validator API

Esendex's phone verification service is trusted by some of the biggest brands in the world.

Grey Boeing Logo
Grey Orkin Logo
Grey JCPenney Logo
Grey Zillow Logo
Grey UPS Logo
6 logos of companies that work with Esendex

Powerful Phone Validation API Features

When you combine our phone number verification service with these excellent features, anything is possible! Seamlessly create powerful phone validation campaigns with our phone verification service. It delivers everything you need, plus more to check efficiently and lookup phone numbers to recipients without issues.

A pencil icon

Remove Dashes, Parentheses, & Spaces

Our phone number validator API can standardize your contact list by removing any dashes, spaces, and parentheses.

Multiple pieces of mail lined up behind one another

Receive Latest SMTP Email String Data

Our phone validator can return the same email domain that a person's cell phone provider would use.

A hand with a clock hovering over it

Define Time Zones to Restrict Calling Times

Increase your marketing campaign's efficiency by targeting contacts by their location in a specific country.

A phone with arrows coming in and out of the speakers

Landline & Cell Phone Verification

Save time and money by scrubbing your list of contacts and determining whether or not they are landlines or mobile.

Why Choose Esendex’s Phone Verification Services?

We strive to be the best phone verification service in the industry. Our phone validator API provides quality performance to drive your communication strategy.

WE CARE ABOUT YOUR SUCCESS

1. World Class Support

Most phone verification services don't have active online support channels customers can speak to when they need it the most, and we understand.

That's why we have 24/7, around the clock emergency support for our phone validation services. Expect fast response times, fast troubleshooting, and email, chat, and phone support.

a man with a headset on with his thumb up and another man looking down at his phone, holding a headset
A man wearing headphones walking in the city looking at his phone and a woman touching a digital globe of earth
LEAVE NO STONE UNTURNED

2. US & Canadian Phone Verification

Our US phone verification API enables you to leverage your business in the United States and Canada without any interruptions. Don't worry about the distance! Lookup phone numbers in both countries.

PROTECTING YOU & YOUR CUSTOMERS

3. Government Level Security

Our phone number validator tool is 256 Bit Encrypted (typically only reserved for governments and militaries), SOC2 Type 2 Certified, HITRUST Certified.

Hardware-based verification servers are strategically located throughout the US-owned and operated by Esendex.

A man in a suit holding a phone that has a digital lock icon coming out of it, and a man holding a hologram of a digital lock
A chart with data on it moving upwards in a positive motion

Boost Deliverability

Scrub your contact list before starting a marketing campaign to both remove any wrong numbers and verify whether phone numbers are active.

A chart moving upwards with a text message icon behind it

Increase Conversions

Instantly verify your contacts' phone numbers, time zones, and locations to target customers more precisely and boost conversions rates. (Be aware that some numbers may be from one state, but the person is residing in another. Keep this in mind when verifying phone numbers.)

A pencil icon

Reduce Typos & Errors

With phone number verification, you can correct your users' contact data immediately when they sign up for products and services.

A woman programming an sms api and has code displayed on her laptop screen and a man typing on a keyboard with multiple 0 and 1 iconds floating around him

Simple Phone Verification API Documentation

We know that implementing a phone validator API into your business takes time. That's why we made our documentation easy to understand and implement into all of your projects!

You'll have no problem connecting with the phone verification service using any programming language capable of REST or SOAP calls, as it was created by developers who wanted nothing more than making sure you could get up and running quickly without having trouble understanding what is happening or how things work underneath the hood.

Build Your Apps Faster

  • Uncomplicated API References
  • Code in Multiple Programming Languages
  • Technical Customer Support
  • Helpful FAQ Section for Dev

Phone Validator API Benefits

A phone validator API can be highly beneficial for businesses that rely on phone numbers for customer communication. By verifying that a phone number is valid, you can ensure that your customers will be able to reach you and that you won't waste time trying to contact invalid numbers.

There are a few ways that businesses can use a phone validator API. One everyday use is to verify customer phone numbers when they sign up for a new account or service. This can help to ensure that your customer database is accurate and up-to-date.

Another everyday use for a phone validator API is to check the validity of phone numbers before sending out mass marketing communications. This can save you both time and money by ensuring that your messages are only sent to valid numbers.

Overall, a phone validator API can be a valuable tool for any business that relies on phone numbers for customer communication. By verifying the validity of phone numbers, you can ensure that your customers can always reach you and that you aren't wasting time trying to contact invalid numbers.

When to Use a Phone Validator API

A few critical instances where using a phone validator API can benefit businesses. Suppose you run a business that relies on phone communications with customers (such as a call center). In that case, using a phone validator API can help to ensure that the numbers you are trying to reach are valid. This can save your business time and money by avoiding attempts to reach invalid numbers.

Another instance where using a phone validator API can be helpful is if you are collecting customer data through online forms. Using the API to verify phone numbers as they are entered lets you ensure that the data you collect is accurate and up-to-date. This is especially important if you plan on using the phone numbers for marketing or customer service purposes.

Overall, using a phone validator API can be a great way to improve the efficiency of your business communications and ensure that the data you collect is accurate. If you rely on phone communications or collect customer data through online forms, consider using a phone validator API to improve your workflow.

Phone Validation API Returned Data Example

Phone verification API example code

Phone Validator API Pricing

No hidden fees and no long-term commitment required. Best in industry pricing with either our unlimited or per transaction pricing.

We will not be undersold. With Esendex you get the most accurate and advanced phone verification API at the absolute best pricing anywhere.

Phone Verify API Pricing

$0.005/transaction standard

You Can Trust Our Phone Validator API

We’ve been rated 5 out 5 stars on Capterra, GetApp, Google and Facebook – based on 40+ reviews.

capterra logo
g2 logo
getapp logo

Common Phone Verification API Use Cases

Phone verification services can be used in so many ways to verify your customers phone numbers effectively. Here are a few ideas you could implement into your business to save money, and cleanse your database.

A phone verification API can help a business validate the identity of end-users by verifying their phone numbers. By using a phone verification service, businesses can ensure that end users are who they say they are and have a valid phone number. This can help prevent fraud and protect the business from potential legal liabilities.

A phone verification API can help businesses stop fraud and bulk account creation. By verifying a user's phone number, businesses can ensure that they are dealing with a real person. A phone number verifier can also help prevent bulk account creation by making it more difficult for automated systems to create multiple accounts.

A phone verification API can help businesses improve their account creation process by providing a quick and easy way to validate phone numbers. This can be especially useful for businesses that need to create accounts in bulk, as it can help ensure that all the phone numbers are valid. A phone number validator can also check if a phone number is already in use, which can help avoid duplicate accounts.

We provide a phone verification API that is easy to use and free credits for up to 250 phone numbers for first-time customers. For businesses that need to validate more than 250 phone numbers, our bulk phone number validation API is available at a highly competitive price.

A phone verification API can help businesses with Two-Factor Authentication by providing an extra layer of security. The API can ensure that only authorized users can access sensitive data by validating a user's phone number. This can be an essential tool for businesses that deal with sensitive information, such as financial institutions or healthcare providers.

A phone verification API can help businesses reduce calling and voice campaign costs. By validating phone numbers, businesses can avoid costly mistakes and ensure that their campaigns reach the right people.

If you're like most businesses, you have a contact database full of invalid and outdated phone numbers. A phone verification API can help you clean up your database to focus on your reachable customers.

Phone Validator API FAQ's

Get your United States and Canadian phone validation API questions answered here.

What does a phone validator API do?

A phone validator API is used to verify the accuracy of phone numbers. This can be useful for ensuring that customer contact information is up-to-date and accurate. The API can also be used to detect fraud or spam phone numbers.

Does our phone verification API validate Canadian phone numbers?

Yes, our phone verification API verifies any number administered by the North American Numbering Plan Adminstration (NANPA).

How up to date are the data returns of our phone verification API?

We update our database once a month. Any telecom information updates are done at this time.

Does our phone validator API return who a phone number belongs to?

Our phone validator API returns only the Telecom that owns the number, not the person using it.

Does our phone verification service specify whether a phone number is active or inactive?

Our phone validation API does not return whether the number is in use, only if the number is valid and enabled for use.

Does our phone validation API identify the mobile carrier?

Our phone validation API does return the mobile carrier that owns the phone number. This does not include what is known as the sub-carrier level. An example is Cricket has recently been acquired by AT&T so a number that uses Cricket would actually show as owned by AT&T.

How much does it cost to use a phone verification API?

Our phone validation costs $0.005 per transaction.

When should I use a phone verification API?

A few critical instances where using a phone validator API can benefit businesses. Suppose you run a business that relies on phone communications with customers (such as a call center). In that case, using a phone validator API can help to ensure that the numbers you are trying to reach are valid. This can save your business time and money by avoiding attempts to reach invalid numbers.

Another instance where using a phone validator API can be helpful is if you are collecting customer data through online forms. Using the API to verify phone numbers as they are entered lets you ensure that the data you collect is accurate and up-to-date. This is especially important if you plan on using the phone numbers for marketing or customer service purposes.

Overall, using a phone validator API can be a great way to improve the efficiency of your business communications and ensure that the data you collect is accurate. If you rely on phone communications or collect customer data through online forms, consider using a phone validator API to improve your workflow.

What are the benefits of a phone validator API?

A phone validator API can be highly beneficial for businesses that rely on phone numbers for customer communication. By verifying that a phone number is valid, you can ensure that your customers will be able to reach you and that you won't waste time trying to contact invalid numbers.

There are a few ways that businesses can use a phone validator API. One everyday use is to verify customer phone numbers when they sign up for a new account or service. This can help to ensure that your customer database is accurate and up-to-date.

Another everyday use for a phone validator API is to check the validity of phone numbers before sending out mass marketing communications. This can save you both time and money by ensuring that your messages are only sent to valid numbers.

Overall, a phone validator API can be a valuable tool for any business that relies on phone numbers for customer communication. By verifying the validity of phone numbers, you can ensure that your customers can always reach you and that you aren't wasting time trying to contact invalid numbers.

Explore Our Phone Verification API Blog Topics

The Esendex blog has the latest content for all of your phone validation needs.

people sitting at a table in a resturaunt and all of them are looking at their cellphones
PHONE VERIFICATION

How To Verify & Validate Phone Numbers?

Phone validator APIs verify, clean, and check numbers to ensure they’re still valid and, if so, correct. This saves...

Read More
A man holding a phone in front of a laptop and both have marketing data displayed on their screen
PHONE VERIFICATION

How Phone Verification Can Help Businesses?

Phone validation APIs reviews phone numbers and ensures they’re both valid and in use. This prevents you from...

Read More
A man pondering at a latop with a pen to his lip
PHONE VERIFICATION

How Does a Phone Verification API Work?

Phone verification APIs are, as their name suggests, used to verify phone numbers. Verification APIs and...

Read More

Products for a range of use cases

A man sending text messages with the help of an sms api
PROGRAMMABLE SMS API

SMS API

Texting API designed to send & receive SMS & MMS globally using a short code or 10DLC number.

Learn More
A woman sending text messages with an sms braodcast software
NO CODING REQUIRED

SMS Software

Easy to use SMS software that can send & receive SMS & MMS using a short code or 10DLC number.

Learn More Resell SMS
A woman sending mass voice messages with a voice api
PROGRAMMABLE VOICE API

Voice Broadcast

Powerful voice API that sends mass automated phone calls quickly to mobile & landline devices.

Learn More
A man at a desk verifying phone numbers from his laptop with the help of a phone verificationa api
PHONE VERIFICATION API

Phone Verification

Verify mobile & landline numbers, find service providers, & define time zones to restrict calling times.

Learn More

Ready to start your verification journey with us?