ZelNum is described as 'Turn CSV/TXT lists into actionable segments with phone validation, carrier and HLR intelligence, messaging-app, social-account, and crypto-exchange checks, plus API workflows' and is an app. There are five alternatives to ZelNum for Web-based, Google Chrome, SaaS and Microsoft Edge. The best ZelNum alternative is Whapi.Cloud. It's not free, so if you're looking for a free alternative, you could try Numverify API or CheckNumber.AI. Other great apps like ZelNum are NumlookupAPI and WA Number Checker.
Delivers easy WhatsApp integration for developers via a REST API. Features include CRM, ERP support, detailed tutorials, JSON compatibility and comprehensive support for novice to experienced programmers.
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.
Austria
EU
Automate your phone number verification process by checking carrier information with our free and worldwide phone number lookup API.
Canada
CheckNumber.AI provides professional WhatsApp number check online service, and provides a professional WhatsApp Number Checker API to quickly check and filter WhatsApp numbers in bulk.
United States
WA Number Checker is the most reliable solution for validating WhatsApp numbers quickly and accurately. This tool allows users to import numbers from CSV files or generate them using a smart Phone Number Generator, ensuring that only active WhatsApp accounts are identified.
United States
