Phone Validator

Accurate and Reliable Phone Verification Service

Number verification is essential for any company, small or large, looking to do a phone number check to identify outdated numbers in their contact list, especially before a voice or SMS marketing campaign! CDYNE's Phone Verify API has been the go-to, cost-effective solution for phone number validation since 1999. We are a company you can trust.

Free Carrier Lookup API

When you sign up for Phone Verify you will receive 250 bonus phone number lookup credits. You can validate a large chunk of your customer contact list for FREE without ever having to enter your credit card information.

Check Phone Carrier in the U.S & Canada

Validate phone numbers in the United States and Canada instantly. Plus, with the “carrier lookup by phone number” feature you can determine which contacts in your list are associated with a specific phone company.

Cell or Landline Validator

Our number validator can determine whether your contacts' phone numbers are landline or mobile devices. By using this information, you will have more success with targeting for any of your marketing campaigns.

Feature-Packed Phone Number Validation

Create powerful phone verification applications that boost conversions and sales.

Remove Dashes, Parentheses, & Spaces

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

Receive Latest SMTP Email String Data

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

Define Time Zones to Restrict Calling Times

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

Landline & Cell Phone Validator

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

Why Use CDYNE's Phone Verification Drop Service?

Find out whether a phone number is wireless or a landline—in real time. Even if the phone number has been ported between service providers, Phone Verification will return the latest information.

Phone Verification validates the ten digits of a U.S. telephone number and returns carrier information, plus the Location Routing Number (LRN) for telephone numbers administered by the North American Numbering Plan Administration (NANPA). LRN is a unique 10-digit number that represents a telephone switch through which multiple phone numbers are routed. The LRN enables Local Number Portability (LNP), which allows phone numbers to be ported to different carriers.

With Phone Verify, you get complete phone number information validation at a per-transaction rate.