Phone Verification API

Quickly scrub your contact list, identify phone providers, and discover if the number is mobile or landline with our phone verification service API.

Trusted by industry leaders to deliver world class mobile messaging solutions.

Powerful Phone Verification API Features

Our phone verification service gives you everything you need to boost you campaign efficiency by standardizing and verifying phone numbers, so you don’t waste time and money on unreachable contacts.

Standardize Your Contact List

Our phone number verification API removes dashes, parentheses, typos & spaces from phone numbers to ensure each contact is reachable.

Restrict Calling Times

Increase your marketing campaign’s efficiency by defining time zones for your contacts based on location.

Landline & Cell Phone Verification

Determine which phone numbers are mobile versus landline, so you don’t waste time and money sending text messages to non-mobile numbers.

Active Phone Number Verification

Scrub your contact list to remove wrong numbers and verify active/inactive phone numbers before launching your marketing campaigns.

Why Choose Esendex’s Phone Verification Services?

Our trustworthy Phone Verification API is critical to ensuring maximum efficacy of your SMS messaging campaigns by ensuring your phone numbers are accurate, reachable, and receiving messages at the best time for that contact.

1. World Class Support

We understand that most phone verification service providers don’t have active online support channels you can speak to when you need it the most, which is why our emergency support is available 24/7. You can expect fast response times and fast resolution via email, chat, or phone.

2. US & Canadian Phone Verification

Our phone verification service automatically scrubs your contact list – removing errors, verifying active and reachable numbers, and adding time zones – so you can ensure maximum deliverability for your SMS campaigns.

3. Government Level Security

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

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

Developer? Dive right into the code.

Phone verification services can be used in many ways to verify your customers’ phone numbers. Here are a few ideas you could implement to save money and cleanup your database.

Stop Fraud and Bulk Account Creation

Stop fraud and bulk account creation by verifying the end user’s phone number, making it more difficult for automated systems to create multiple accounts.

Two-Factor Authentication

Provide an extra layer of security by validating a user’s phone number, ensuring only authorized users can access sensitive data. This can be an essential tool for businesses that deal with sensitive information, such as financial institutions or healthcare providers.

Reduce Campaign Costs

Reduce campaign costs by validating phone numbers, so you don’t waste text messaging or call campaigns on inaccurate contact data. You can also save money by identifying the contact’s carrier, which have restrictions on the amount of text messages you can send their contacts in a specific amount of time.

Clean Your Contact Database

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.

You Can Trust Our Phone Verification API

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

Phone Verification API Pricing

Esendex offers best-in-industry pricing with our unlimited or per transaction pricing with no hidden fees or long-term commitment.

Phone Verification API Pricing

$0.005/transaction standard

What does a phone verification API do?

Esendex’s API is used to verify phone numbers, ensuring that customer contact information is up-to-date and accurate. The API can also be used to detect fraud or spam phone numbers.

How recent are the data returns of your phone verification API?

We receive daily delta files for US numbers with a weekly database reconciliation on Sundays, ensuring the most up to date and accurate data. Canadian numbers are updated on a monthly basis.

Does your phone validation API identify the mobile carrier?

Our API does return the mobile carrier that owns the phone number.

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

Our phone validation costs $0.005 per transaction.

Let’s start sending, together.