How Long Does a Virtual Phone Number Last?

Before you link a number to an account, it's worth knowing how long you'll actually have it. The answer ranges from minutes to years depending on what kind of virtual number you're using, and the difference decides whether it's a good login and recovery number or just a way through sign-up. This guide compares common number types, explains what ends a number's life and what happens to your accounts when it does.

How long do different virtual numbers last?

Here's a quick comparison of common options in the US, Canada and UK. Provider policies change, so check the current terms of any service you rely on.

How long does a Noir SMS number last?

Each Noir SMS number is reserved for 20 minutes for one verification on one service. During that time, the code appears in your dashboard with a sound alert, and you can request another SMS on the same number for free. If no SMS arrives within 20 minutes, you're refunded to your balance automatically. You can also cancel manually two minutes after purchase if no code has arrived.

After the reservation ends, the number goes back to the provider. It's single use: you can't extend it or rent the same number again later.

Why do VoIP numbers expire?

Free and cheap VoIP numbers come from a limited pool, so providers reclaim numbers that aren't used to give them to new customers. Google Voice may reclaim numbers after a long period without activity and usually warns users first. TextNow recycles free numbers after a period of inactivity; it has offered paid options to lock a number.

If you keep a VoIP number for important accounts, use it regularly and follow the provider's current rules. Remember too that many apps reject VoIP numbers for verification.

What happens when a number ends?

The number returns to its provider or carrier and, after some time, can be issued to someone new. Accounts still linked to it don't know it changed hands. Login codes, recovery codes and messages will go to the new owner, or nowhere.

That's the main reason not to leave a temporary or lapsing number on accounts you care about.

• You may be locked out when an app asks you to re-verify.
• The new owner may receive your codes or messages.
• The new owner may find the number already registered on apps.

Which number should I use for which job?

Match the number's lifetime to the account's. For a sign-up where you don't want to share your personal number, a 20-minute rented number is enough, as long as you then add an email, authenticator app or your own number to the account. For an account you'll keep for years, use a number that lasts years: your own SIM or an eSIM line.

Use temporary numbers only to verify your own legitimate accounts and follow each platform's terms.