> For the complete documentation index, see [llms.txt](https://guides.kenst.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.kenst.com/data/phones.md).

# Phone Number

> What are some interesting input tests for phone numbers?

## US Phone Numbers

* [Fictitious Telephone Numbers](https://en.wikipedia.org/wiki/Fictitious_telephone_number)
* \[555 Phone Number]\(<https://en.wikipedia.org/wiki/555_(telephone_number>))