You can fax any U.S. Senator without a fax machine. Most Senate offices keep a fax line for constituent mail, and faxes are logged like written letters. With Fax.Plus you can do it free: sign up (no credit card), attach your document, enter the number, send. Works on web, Android, iOS, and Google Docs.
The Senate publishes no central fax directory and numbers change often, so confirm yours on the senator's official .gov page before sending.
List below last verified in June 2026.
Fax usage is on the rise in some sectors due to legal compliance issues thanks to the extra security measures online faxing can offer. U.S. Senators are no exception and use fax frequently for various reasons. Almost all Senators have an open and dedicated fax number, and finding the best online faxing solution that can provide a convenient and secure service can be hard.
Fax.Plus is the best online faxing solution for the vast set of features it provides along with extra security measures it takes to ensure maximum privacy and confidentiality of its user data (learn more about Fax.Plus features).
We have divided this article into two parts: the first part will show you how to send a free fax to your Senator with Fax.Plus, and the second part is the updated list of U.S. Senators' fax numbers in different states and cities.
How to contact and send fax to your Senator without a fax machine?
- Go to Fax.Plus, and sign up for free (no credit card is needed). You have the ability to send fax to Senators from other Fax.Plus supported platforms including Android, iOS, and Google Docs (get Fax.Plus application on other platforms).
- Go to Send Fax section on your Dashboard, and attach the document(s) you would like to send as a fax to your Senator.
- You can write an optional cover page in case you need someone specific to receive your fax in the Senator's office.
- Add your Senator's fax number in the To field. If you don't know the fax number of your U.S. Senator, check out our data below.
- Click on Send, and your document will be faxed to your Senator right away.
Full list of U.S. Senators' fax numbers (Last verified: June 2026)
We are consistently updating this list of U.S. Senators and their fax numbers to make sure the fax number is valid. All you need to do is verify the fax number yourself before reaching out to your Senator via fax.
Fax numbers change often and the U.S. Senate does not publish a single official fax directory. Please confirm the number on your senator's official .gov page before sending.
Please note: The U.S. Senate no longer maintains a central public directory of fax numbers, so we can't fully verify every entry listed above. Please confirm the number on your senator's official .gov page before sending. Last verified: June 2026.
Veelgestelde vragen
Can you fax a U.S. senator?
Yes. Most U.S. Senate offices keep a fax line for constituent and official correspondence. You can send a fax to your senator from any device with an online fax service such as Fax.Plus, no fax machine required.
How do I find my senator's fax number?
Check your senator's official page on senate.gov, then confirm the fax number on their own .gov contact page. Numbers change, so verify before sending anything time-sensitive.
Are U.S. Senate fax numbers public?
Many are, but the Senate does not publish one central fax directory and some offices have dropped public fax entirely. That is why any list, including this one, should be re-verified before use.
Can I fax a senator for free?
Yes. With a free Fax.Plus account you can send a fax online without a fax machine or a phone line. No credit card is required to start.
Is faxing a senator an effective way to be heard?
Faxes are logged by the office like written letters and do not depend on a contact form being open. They are a reliable channel alongside phone calls and email.
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Swiss Confederation
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