NumlookupAPI

About NumlookupAPI

NumlookupAPI is a JSON REST API for phone number lookup and validation, covering more than 230 countries. It returns data such as validity, line type (e.g. mobile), international and local formatting, country name and code, carrier, and location for a given phone number, accessed via a GET request with an API key.

The service is aimed at developers who need to validate and enrich phone number data, for example to reduce spam in registration forms. It offers a free tier of 100 requests per month for hobby or early-stage projects, and paid plans include unlimited concurrent API connections. Documentation, a Postman collection, and a GitHub repository are provided to support integration, along with code examples in cURL, PHP, Node, and Java.

Key features

• Validates phone numbers and returns carrier, line type, and location data
• Global coverage across 230+ countries
• Simple JSON REST API with GET requests
• Unlimited concurrent API connections on paid plans
• Postman Collection and code examples for cURL, PHP, Node, and Java

Frequently asked questions