Numbox frequently asked questions

Fifteen questions about picking a shared US or Canada number, reading the SMS that arrives, and knowing when to rent a private number instead.

Using a shared number

How do I receive an SMS without my own number?

Open a country page, pick an active US or Canada phone number, and use it wherever the service asks for a phone number. The SMS lands in that number's inbox on this site — read it, copy the code, and finish sign-up.

Do I need to create an account first?

No. There is no signup for Numbox itself. You open a number's inbox directly and read whatever SMS arrives — no email, no password, no app download.

How do I know a number is ready to use?

Each number carries a status. Active means the number is online and taking traffic right now; resting means it stopped receiving new messages, though its history stays readable. Start with an active one.

Can I send a text message from one of these numbers?

No. Every number here is receive-only. You cannot send an SMS, reply to one, or take a call on it — it exists to receive an incoming verification code.

What happens after I read my code?

Nothing is reserved for you. The next SMS on that number belongs to whoever uses it next, so treat the number as spent once you have your code.

Codes, delivery and privacy

Diagram: pick a public number, enter it in the app, read the code in an inbox anyone can open.
The short answer to half the questions below.

Why didn't my verification code arrive?

A shared number sometimes goes to whoever requested a code first, or the sending service rejects a temporary number outright. Try another active number and request the code again.

Can other people read the SMS I'm waiting for?

Yes. Anyone who opens the same number's inbox reads the same messages — there is no login separating one visitor from another. Never send anything private to a shared number.

Do you store the SMS messages we receive?

The inbox shows the SMS history tied to the number itself, not to you personally. We do not attach a name or account to a message — see the privacy policy for the full picture.

Is my own phone number visible to anyone?

No. You never enter your real phone number on Numbox. The whole point of using a temporary number is to keep your own number off the service you are signing up for.

Why does a service ask me to verify by voice instead of SMS?

A shared number cannot take a call, so a voice verification option will not reach you here. Choose the SMS option on the service, or use your own phone for that step.

Coverage, limits and going private

Which countries does Numbox cover?

United States and Canada, both using the +1 country code. See the country pages for the current list of active numbers in each.

Can I use a shared number for WhatsApp or Telegram?

Sometimes. Both apps often ask for a phone number that has not verified an account on them before, which a shared number can fail even when the number itself works. If that happens, rent a private number instead.

Should I use Numbox for a bank or payment account?

No. A shared number is visible to other visitors, so it is the wrong choice for banking, payment confirmations, or account recovery. Keep those on your own phone number.

How long does a number stay online?

There is no fixed schedule. Some numbers keep receiving for weeks, others go quiet within a day and move to resting. When a number stops working, pick another active one from the country page.

What if I need a number nobody else can read?

Rent one from sms-verification-number.com — a private number costs about $1 for 20 minutes and refunds automatically if the code never arrives. That is the option for accounts you plan to keep or services that keep rejecting shared numbers.