Fax Number Example and Format – How Long Is a Fax Number?
https://www.faxburner.com/blog/fax-number-example-and-format-how-long-is-a-fax-number/
WebMay 29, 2023 · The length of fax numbers varies from country to country. In the United States, it’s usually 10 digits. Other countries use a different format than the U.S., with some having six- or seven-digit numbers. Now, in the U.S., fax numbers, much like telephone numbers, typically follow the North American Numbering Plan (NANP). The numbering …
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