Phone number validation is the process of checking a phone number to see if it is valid and in service. The process can help reduce fraud and ensure that marketing, sales and customer support teams are only reaching real people who can respond to their calls or emails.

It can also help reduce errors, especially for businesses that use two-factor authentication (2FA) or require customers to verify their identity via a one-time code sent through SMS or a phone call. It is especially useful for online stores, banks and credit card processors, who must thwart increasingly sophisticated fraudulent purchases made using stolen identities or credentials.

A good phone number validator can quickly and easily check the status of a number to see if it is valid, active or disconnected. It can also validate the line type and location — such as whether the number is a landline or mobile — and provide other enrichment information such as the country of origin, operator and network status.

Verifying Phone Numbers: Phone Number Validator

Integrate it into your website, CRM/ERP, or other software system to validate phone numbers in real-time at the point of data entry, ensuring that only valid and reachable phone numbers are entered into your database. It can also standardize international formats and detect if a number is being used for fraud purposes, such as a disposable or temporary phone number that fraudsters commonly use.

A simple API can be integrated seamlessly into any form in a website or web app, and will automatically validate a phone number as it is being entered, so there are no delays in the signup or login process. This can be particularly useful for websites that have an online form or ecommerce order form, and it can greatly increase conversions and reduce abandonment rates.