PhoneNumber

A field whose value conforms to the standard E.164 format as specified in E.164 specification (opens in a new tab). Basically, this is +17895551234. The very powerful libphonenumber library (opens in a new tab) is available to take that format, parse and display it in whatever display format you want. It can also be used to parse user input and get the E.164 format to pass into a schema.