Generate random US phone numbers with valid area codes based on state and city location.
Our free US phone number generator creates random phone numbers with valid area codes based on real US locations. This tool is perfect for:
Test applications that require phone number inputs with realistic data
Create realistic sample data for databases and spreadsheets
Get realistic phone numbers for creative writing and content
Protect your privacy when you don't want to share real numbers
This tool uses a database of actual US area codes mapped to their corresponding states and cities. When you select a state, the tool uses only valid area codes for that region. You can also specify a city for more accurate location-based numbers.
United States phone numbers follow a specific format consisting of three parts:
The first three digits (XXX) represent geographic regions within the US
The middle three digits (XXX) originally represented specific telephone exchanges
The last four digits (XXXX) identify the specific line
The North American Numbering Plan (NANP) was introduced in 1947 to create a consistent system for telephone numbers across the United States and Canada. Originally, area codes with a middle digit of "0" or "1" were assigned to states/provinces that needed multiple area codes, while areas with a single code received a middle digit of "2" through "9".
As population grew and telecommunication needs expanded, the system evolved. Today, there are over 300 area codes in the United States, with new ones being added regularly as existing codes reach capacity.
No, the numbers generated by this tool are randomly created but follow valid US phone number formats with actual area codes. They are not connected to real people or businesses.
Yes! These numbers are perfect for testing software applications, websites, or forms that require phone number inputs. However, always use test environments for development purposes.
Area codes are distributed based on population density and telecommunication needs. States with larger populations (like California, Texas, and New York) have more area codes than less populated states.
The exchange code is the second set of three digits in a US phone number. Historically, these represented specific telephone exchange offices. Today, they're mainly used to expand the pool of available numbers within an area code.
Yes, certain patterns are reserved for special purposes:
Yes, as regions grow and more phone numbers are needed, new area codes are added through a process called an "area code split" or an "area code overlay." This is managed by the North American Numbering Plan Administration (NANPA).
Developers regularly need sample phone numbers to test forms, databases, and customer management systems. Our generator provides realistic numbers that match the format expected by US-based applications.
When creating documentation, presentations, or mockups that would normally contain real customer data, using generated phone numbers helps protect privacy while maintaining realistic-looking information.
Instructors can use these numbers when teaching data entry, customer service, or sales techniques without exposing real customer information.
Writers, filmmakers, and content creators often need fictional phone numbers for their stories. Using our generator ensures they're using numbers that look realistic but won't connect to a real person.
When setting up new systems or demonstrations, populating databases with realistic sample data improves the testing experience. Our tool makes it easy to generate multiple numbers at once.