Phone Number Generator
Generate syntactically correct, fake phone numbers for software testing and form validation. Supports E.164 international formats and reserved ranges for 50+ countries.
About
Software developers and QA engineers often require robust datasets to test input fields, database schemas, and user interfaces. Using real phone numbers for testing is a privacy risk and violates GDPR/CCPA compliance. This Phone Number Generator creates syntactically valid but fictitious telephone numbers tailored for specific countries.
The tool utilizes International Telecommunication Union (ITU) standards, specifically the E.164 recommendation, to ensure that generated numbers pass strict regex validation rules in your applications. Where available, it prioritizes "reserved" ranges (like 555 in the US or 0700 900 in the UK) designated specifically for drama, documentation, and testing, ensuring you never accidentally harass real subscribers.
Formulas
The generator follows a step-by-step algorithmic approach to construct validity:
- Step 1: Selection. The system retrieves the Country Dialing Code (e.g., +44) and the National Destination Code (NDC) pattern.
- Step 2: Range Safety. If a country has a designated 'Drama/Test' range (e.g., UK Ofcom's 07700 900000 - 07700 900999), the generator locks the prefix to these digits.
- Step 3: Randomization. Remaining 'x' placeholders are replaced with pseudorandom integers (0-9).
- Step 4: E.164 Formatting. Non-numeric characters (parentheses, spaces, hyphens) are stripped or applied based on the user's output preference.
E.164 Structure: [+] [Country Code] [Subscriber Number including Area Code]
Reference Data
| Country | ISO Code | Dial Code | Mobile Format (Pattern) |
|---|---|---|---|
| United States | US | +1 | (555) 01x-xxxx |
| United Kingdom | GB | +44 | 7700 900xxx |
| Germany | DE | +49 | 151 23xxxxxx |
| France | FR | +33 | 6 12 xx xx xx |
| Australia | AU | +61 | 491 570 xxx |
| Japan | JP | +81 | 90-xxxx-xxxx |
| Brazil | BR | +55 | (11) 9xxxx-xxxx |
| India | IN | +91 | 9xxx xxxxxx |
| China | CN | +86 | 1xx xxxx xxxx |
| Russia | RU | +7 | (9xx) xxx-xx-xx |