Phone number validator
Check digit length, calling code and basic country-specific structure.
Validate a numberDeveloper and QA test data
Random phone number generator for testing
Create correctly structured phone fixtures for forms, test suites, demos and documentation. Generation happens locally in your browser.
Generated E.164 fixture
+12025550123
Pattern: (NPA) NXX-XXXX
Important: Except where a regulator reserves a fictional range, a valid-looking number could match a real subscriber. Never call, text or use generated data for account verification.
Popular country generators
Generate test numbers for popular country formats
Free browser tools
Test, validate and export phone fixtures
Country calling code lookup
Find dialing codes, common national patterns and E.164 examples.
Look up a calling codePhone regex tester
Run JavaScript regular expressions against sample phone input.
Test a phone regexBulk test-data generator
Create up to 100 local fixtures and export JSON or CSV.
Generate bulk fixturesPractical use cases
Built for software testing
Form and input QA
Exercise country pickers, input masks, length rules and error states without copying a real person's contact data.
Seed and fixture data
Create plausible records for local development, staging databases, screenshots and product demonstrations.
International formatting
Compare national, international, E.164 and RFC 3966 representations before sending values to an API.
Reference
Common phone number formats
| Format | Example | Typical use |
|---|---|---|
| National | (202) 555-0123 | Display inside one country |
| International | +1 202 555 0123 | Human-readable global display |
| E.164 | +12025550123 | Databases, SMS and voice APIs |
| RFC 3966 | tel:+12025550123 | Clickable telephone links |
Manually reviewed country guides
Compare 31 country phone formats
Each guide documents its own calling code, domestic trunk rule, safety limits and reviewed input-to-E.164 test cases.
Engineering guides
Build phone-number features that hold up in production
E.164 format
Normalize international values without confusing country codes and trunk prefixes.
Read the E.164 guideValidation layers
Separate parsing, structural validity, reachability and user verification.
Read the validation guideSafer test data
Use reserved ranges, deterministic fixtures and explicit negative cases.
Read the test-data guideOriginal research
See the evidence behind the generator
Fixture methodology
How sources are selected, safety labels are assigned and changes are reviewed.
Read our methodology31-country safety matrix
Compare documented fictional examples with structural fixtures that may be assigned.
Review fictional rangesReproducible E.164 cases
Six reviewed input-to-output contracts with country-specific failure boundaries.
Open the test casesFAQ
Know what the result means
Are these real phone numbers?
No. Results are test data, not live lines. They cannot receive calls, SMS or one-time passwords.
Does “valid” mean active?
No. Structural validation cannot confirm assignment, reachability, carrier ownership or SMS capability.
Where is data processed?
The current generator and formatter run in your browser. Generated values are not submitted to GetPhoneNum.