The free phone number toolkit built for developers, testers, and anyone who needs realistic test data.
RandomPhoneNumbers.com was created to solve a common problem faced by software developers worldwide: the need for realistic, correctly-formatted phone numbers for testing purposes. Whether you're building a sign-up form, testing an SMS API integration, populating a test database, or validating international phone number input fields — you shouldn't have to guess at number formats or risk using real people's numbers.
Our mission is to provide the most comprehensive, accurate, and easy-to-use phone number generation and reference tools on the web — completely free, with no registration required.
Generate random phone numbers for 30+ countries with correct country codes, area codes, and format patterns. Single or bulk generation available.
Check if a phone number follows the correct format for its country — useful for testing validation logic and regex patterns.
Detailed guides for 25+ countries covering number formats, area codes, mobile prefixes, regulatory bodies, and telecom infrastructure.
Need hundreds of test numbers? Our bulk generator creates large sets of formatted numbers you can export for test databases and data pipelines.
For testing form inputs, API integrations, and phone number fields during development. Our numbers follow real formats so your code handles them like production data.
For functional testing, regression testing, and edge-case testing of phone number validation logic. Test with numbers from different countries and formats.
For seeding test databases, creating mock datasets, and building data pipelines that process international phone numbers.
For learning about international telecommunications, phone number standards (E.164, E.123), and how different countries structure their numbering plans.
Our phone number generator uses format templates based on real numbering plans from each country's telecommunications authority. We maintain a database of valid prefixes, area codes, and number length rules to ensure that generated numbers are structurally correct.
All number generation happens directly in your browser using JavaScript — no data is sent to any server, and no generated numbers are stored or logged. Your privacy is fully protected.
Our format information is regularly updated to reflect changes in national numbering plans, new area codes, and evolving telecommunications standards.
We take both your privacy and responsible use seriously:
Have feedback, found a bug, or want to suggest a feature? We'd love to hear from you.