Port Your HelloFax Number to Send FAX Mail
If you have a dedicated HelloFax number, you can port it to Send FAX Mail rather than losing it when you leave. HelloFax's fax service has narrowed over the years, which makes moving to an actively developed platform worthwhile. Here's how the transfer works and what to gather first.
HelloFax, part of Dropbox, pairs e-signing with online fax and assigns a dedicated fax number on its paid plans. That number is portable through the normal process, though HelloFax's fax product has seen limited investment, so confirm your number is still active and provisioned before you start. As with any port, keep the HelloFax subscription running until the number has moved — an inactive number can be harder or impossible to reclaim.
A dedicated HelloFax number is a real carrier number, so it can move to Send FAX Mail through standard number portability — the checklist and steps below cover exactly how.
What you'll need to port your HelloFax number
- A HelloFax billing record or receipt showing the fax number and account owner
- The email and account details tied to your HelloFax subscription
- Any HelloFax account or reference number you can locate in your account settings
- The account-holder name and address on file, matched exactly for the LOA
- The signed Letter of Authorization from Send FAX Mail
How to port your HelloFax number to Send FAX Mail
- 1Sign up for Send FAX Mail and start the free trial to keep faxing without interruption
- 2Confirm in HelloFax that your number is still active and note your account details
- 3Provide the number and account information to Send FAX Mail and sign the LOA
- 4Reach out to HelloFax and Dropbox support for any port-out detail their records require
- 5After the number lands on Send FAX Mail, cancel HelloFax and export any signed documents
How long does the port take?
A HelloFax number that is genuinely active ports on the usual local-number schedule — roughly one to two weeks. The extra variable with HelloFax is confirming the number is still provisioned on their side; if it lapsed, the port can't proceed until that's resolved, so check status before you count on a date.
Getting your details from HelloFax
HelloFax surfaces less account detail than a dedicated fax carrier, so you may need to contact Dropbox and HelloFax support to get the account reference and confirm the number is portable. Pull whatever billing records and account identifiers you can from your own HelloFax account first. Don't assume a number is still yours to move without confirming it's active.
Porting your HelloFax number — FAQ
HelloFax has scaled back its fax development under Dropbox, which is a big reason people move. If your dedicated number is still active, it can port; if the account has lapsed, sort that out with HelloFax before starting.
The no-cost HelloFax sending option is for outbound documents, not a dedicated inbound line. Only a paid HelloFax number is portable — check which one you actually have before planning a transfer.
Look in your HelloFax account settings and billing receipts. Because HelloFax exposes limited data, contacting their support for the account reference is often the fastest way to gather what the LOA needs.
HelloFax stores signed documents and fax history, so download those first. Once the number is live on Send FAX Mail and your files are saved, it's safe to close the HelloFax account.
Ready to move your HelloFax number?
Start free in 30 seconds, keep your number, and let us handle the transfer.
7-day free trial · No credit card required