Fake 555 Telephone Number Prefix and More

Unless you want your automated tests to send a text message to one of your users, you ought to use a fake phone number. In the U.S., there is the "dummy" 555 phone exchange, often used for fictional phone numbers in the movies and television.

These fake phone numbers are very helpful. For example, use these fake numbers to test the data entry validation of telephone numbers through the user interface.

example.com, example.org, example.net, and example.edu

What about automated tests that verify ...