This guide explains how to use online phone numbers to receive free SMS from Fastmail for account verification.
Simply choose a number from the list below — no registration needed.
Use it to receive your Fastmail verification code instantly via SMS.
5 disponibbli Fastmail Numri tat-Telefon. Ġie miżjud numru ġdid 3 xhur ilu.
Need a virtual number for WhatsApp that works right now — and costs nothing? You’re not alone. Whether you’re testing an app, creating an anonymous profile, or just don’t want to link your personal number, a free number for WhatsApp can save the day. No SIM, no stress — just copy, paste, verify.
Most platforms won’t let you in without a phone number. That’s fine — until you don’t feel like handing yours over. A fake Fastmail number bridges the gap: temporary, disposable, and totally anonymous.
What makes them so popular?
Step 1: Go to the number list and choose any temporary mobile number for Fastmail. Make sure the country matches what Fastmail accepts for verification.
Step 2: Enter that online number for Fastmail registration into the app during sign-up.
Step 3: Wait a few seconds. The message should show up right on the page — no refresh needed.
Step 4: Copy the Fastmail verification code and complete registration.
Optional: Save the number if you plan to reuse it, or go for a temporary SIM Fastmail (paid option) for private use.
Free is good. But sometimes, getting OTP for Fastmail just doesn’t work with overused numbers. That’s when you look at paid ones.
If you’re trying to create Fastmail account without phone number that you own — this is the way.
You're not giving your real number — that’s already a win. But still:
You’re using a one-time number for Fastmail that auto-expires. Think of it as a burner phone, but digital.
Can I use a fake mobile number for OTP on Fastmail?
Yes, but it may not always work. Some numbers get flagged. We recommend trying multiple or upgrading to private numbers.
Is this the same as using Fastmail OTP online services?
Exactly. The SMS arrives on our platform, you just read it and move on.
How do I get free US number for Fastmail?
Head to the USA section of our site. We list multiple numbers that support receiving Fastmail codes.
Will this work if I use Fastmail without real number?
Yes. That’s the whole point — bypass needing your own SIM or mobile line.
What if my SMS doesn’t arrive?
Try a different number. Some services temporarily block popular public numbers. You can also try our online SIM for Fastmail.
Ready to get started?
Get your virtual number for Fastmail — free online now and experience how smooth and stress-free verification can be.