Free and open source REST API that provides a simple yet effective way to validate and format a phone number.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Platforms
- Software as a Service (SaaS)

NumlookupAPI is described as 'Automate your phone number verification process by checking carrier information with our free and worldwide phone number lookup API' and is an website. There are five alternatives to NumlookupAPI, not only websites but also apps for SaaS, Mac, Windows and Linux. The best NumlookupAPI alternative is NumValidate, which is both free and Open Source. Other great sites and apps similar to NumlookupAPI are RealValidito, Numverify API, RealPhoneValidation and Veriphone.
Free and open source REST API that provides a simple yet effective way to validate and format a phone number.

Free, real-time Phone Validator service. Check if the number is real and valid, mobile or landlines and find carrier & region details.




Global phone number validation API delivering accurate carrier, line type, country, and location data in secure JSON format. Supports 232 countries, batch validation, and real-time processing. Enables fraud prevention and integrates with web forms and business platforms.

Phone validation service. Carrier lookup. Identify disconnected numbers, landline or cell, caller ID.
The phone number verification API. Veriphone will parse, format and validate phone numbers for all countries/regions of the world.

