How to Find Fax Number on Printer (2026 Guide)

Not sure what fax number your printer is using? Here are 5 reliable methods to find the fax number on any printer — including HP, Brother, Canon, Epson, Ricoh, Xerox, and Lexmark — in under 2 minutes.

Frequently Asked Questions

How do I find out what my fax number is on my printer?
Navigate to your printer's fax settings menu and look for "Station ID," "Fax Header," or "Own Fax Number." On HP printers go to Setup > Fax Setup > Basic Fax Setup > Fax Header. On Brother printers go to Menu > Initial Setup > Station ID > Fax. You can also print an activity report — the configured fax number appears in the report header.
Is my printer's fax number the same as my phone number?
Your fax number is the telephone number assigned to the phone line plugged into your printer's LINE port. If the fax uses a dedicated line, it will be a different number than your voice line. If they share one line with distinctive ring service, they share a number but ring differently.
What if the fax number is blank in my printer settings?
A blank Station ID means the fax number was never entered during setup. The printer can still send and receive faxes, but the header on outgoing faxes will be empty (which may violate FCC regulations). Use the Caller ID method — call your mobile phone from the printer's On Hook Dial mode — to discover the actual line number, then enter it in the Station ID field.
How do I find my fax number on an HP OfficeJet printer?
On HP OfficeJet and OfficeJet Pro printers, tap the Setup gear icon on the touchscreen, then go to Fax Setup > Basic Fax Setup > Fax Header. The currently saved fax number is shown in the entry field. You can also print a fax activity report from Setup > Reports > Fax Reports.
How do I find my fax number on a Brother printer?
On Brother MFC printers, press Menu, navigate to Initial Setup, then select Station ID and choose Fax. The stored number is displayed on the LCD screen. On touchscreen models, tap Settings > All Settings > Initial Setup > Station ID > Fax.