* Numbers are randomly generated based on the North American Numbering Plan.
About US Phone Number Formats
The North American Numbering Plan (NANP) governs phone numbers in the United States. A standard US number consists of a 3-digit Area Code, a 3-digit Exchange Code, and a 4-digit Subscriber Number.
| Structure | Format | Example |
|---|---|---|
| International | +1 (XXX) XXX-XXXX | +1 (212) 555-0199 |
| Domestic | (XXX) XXX-XXXX | (212) 555-0199 |
Common US Area Codes
Our generator utilizes famous area codes from major metropolitan areas to ensure the data looks authentic for your UI designs:
- New York City: 212, 646, 718
- Los Angeles: 213, 310, 818
- Chicago: 312, 773
- Washington D.C.: 202
Historically, the 555-0100 through 555-0199 range in the US has been reserved for fictional use in movies and television to prevent real people from receiving unwanted calls. Our tool simulates standard subscriber ranges for general testing.
How to Use This Tool
Simply click the "Generate" button to get a new number. This is ideal for testing database constraints, validating phone number input fields in web forms, or creating realistic user profiles for demonstration purposes.