What Microsoft checks
Microsoft verifies with an SMS code or a phone call that reads the code aloud. Landlines are accepted through the call option. The number is stored as a security contact used for recovery and for sign-in challenges; it is never shown to anyone.
- Signup. Often optional when you use an e-mail alias, mandatory when Microsoft suspects a bot.
- Recovery. The number is one of the recovery methods; Microsoft Authenticator and passkeys are the better ones.
- Limits. A number can be attached to a limited number of accounts.
Which line and country to pick
A landline is enough for a Microsoft account alone; take a mobile line if the same number will verify other services. United States, United Kingdom or Germany ranges pass routinely.
Step by step
- Pick the line. Choose a mobile or landline number in United States or another recommended country. The exact price, activation included, is shown before you pay.
- Pay in crypto. Send any of 8 cryptocurrencies to a one-time deposit address. The line is live about a minute after the payment confirms; no e-mail, no document.
- Enter the number in Microsoft. Type the number where Microsoft asks for it and request the code — by SMS, or by voice call if offered.
- Read the code in the panel. The SMS lands in your inbox with the code extracted and copyable; a voice call is answered by the voicemail and transcribed. Developers get it on a webhook.
- Lock the account. Set Microsoft Authenticator or passkey so the account does not depend on the number alone.
If Microsoft refuses the number. It is the range, not the line. Ask for a swap — free within 7 days — and you get a number from a different carrier block, with the remaining period carried over.
Keeping the account
- Microsoft Authenticator or a passkey as the primary method, so the number is a fallback rather than the key.
- Recovery code saved somewhere safe; Microsoft offers one in the security settings.
- Remove or keep the number deliberately: a lapsed number still listed as a recovery method is a way in for whoever gets it next.
What a number for Microsoft costs
Prices per month for the countries we recommend for Microsoft, plus a one-time $10.00 activation per number. Quarterly billing takes 10% off, yearly 25%. Calls, SMS, voicemail and the API are included; you pay in crypto at the live rate.
| Country | Line | Per month | Due today |
|---|---|---|---|
| United States +1 | Landline | $15.50 | $25.50 |
| United Kingdom +44 | Landline | $15.50 | $25.50 |
| Germany +49 | Landline | $10.30 | $20.30 |
Any of the other 44 countries works too; these three are the ones we see refused least by Microsoft.
Questions
Can I create an Outlook account with a virtual number?
Yes. When Microsoft asks for a number, the code arrives by SMS or voice call to your panel.
Does Microsoft accept landlines?
Yes, through the call option. A landline is the cheaper way to verify and recover a Microsoft account.
Does this work for Xbox and Teams?
They are the same Microsoft account. Verify it once and it applies everywhere.
Should I keep the number on the account?
Keep it while it is your only recovery method, then add Authenticator or a passkey and decide. A lapsed number left on the account is a risk.
How many Microsoft accounts can one number verify?
A limited number. Use one line per identity to avoid refusals.
Written from what actually lands on our lines, and updated when Microsoft changes its checks. If something here is out of date, tell us — we fix pages faster than we fix code.