NumVerify

We offer a full-featured yet simple RESTful JSON API for national and international phone number validation and information lookup for a total of 232 countries around the world. Requested numbers are processed in real-time, cross-checked with the latest international numbering plan databases and returned in handy JSON format enriched with useful carrier, geographical location and line type data. Integrating our numverify API into your application will enable you to verify the validity of phone numbers at the point of entry, protecting you from fraud and increasing good leads. Our phone number format validation system is based on the most up-to-date international numbering plans containing complex syntax rules, carrier data, line type data and location information for all mobile and landline numbers in both national and international formats. This allows us to ensure the highest level of quality, reliability and accuracy for each validation result returned by the API. We believe that every online business that in any way utilizes its customers' phone numbers should be validating them in order to ensure frictionless communication and reduce undelivered messages. That is why we decided to offer a number of monthly validation requests for free.

Numverify is a product built and maintained by us, apilayer, an Austrian technology company. Our goal is to offer quick and simple access to our software with the objective of speeding up development of your applications and easing the burden on your back-end. We aim to help developers, startups and larger companies automate and outsource complex processes by serving them with dedicated and handy programming interfaces. Thorough phone number validation has numerous benefits for your business and is incredibly easy to implement. The best way to capture good leads is to verify contact information right at the point of entry into your database. Our main API functionalities include international and national number validation, location data retrieval, carrier detection, and line type detection. We understand that your API requests may contain sensitive data, so we offer paid customers the possibility to access the API and all data provided by and processed through it via industry-standard 256-bit HTTPS encryption.