How Shared Temporary SMS Numbers Work

Shared temporary SMS numbers are public telephone numbers that can receive messages through an online inbox. They can be useful for legitimate development testing and for non-sensitive services that allow temporary numbers, but they are not private phone numbers.

What a shared number is A shared number is a phone line operated by a provider and published on a website. When any service sends an SMS to that number, the message is routed to a web inbox that anyone can open. There is no ownership, no account, and no exclusive access — that is what makes the service free and instant.

Why messages can be seen by other visitors Because the inbox is public, every visitor who opens the same number page sees the same stream of messages. For this reason, a shared number must be treated like a public noticeboard, not like your personal handset. Assume that anything sent to it can be read by strangers.

Why OTPs and account-recovery messages are dangerous here Verification codes and password-reset links are effectively keys to an account. If a code for your real account ever lands in a public inbox, anyone watching that inbox can use it. This is why banking, financial, government, healthcare, identity, and account-recovery messages are prohibited on this service — and why our inbox automatically suppresses messages from those categories.

Delivery and carrier limitations Delivery depends on the carrier and the sending service. Messages may appear after a short delay, and many services block known virtual or shared number ranges entirely. Availability of any specific number is not guaranteed.

Which use cases are prohibited You may not use shared numbers to access another person's account, bypass a platform's security controls, create accounts in violation of a service's rules, or receive password resets and recovery links. See the Acceptable Use Policy for the complete list.

Safer alternatives for sensitive accounts For any account that matters — email, banking, government, work — use a number you own exclusively, or better, switch to an authenticator app or a passkey. Those methods do not depend on SMS delivery at all.

How to report a message containing personal information If you see a message on a public inbox that exposes personal data, use the Report Abuse page. Reports are reviewed and, where appropriate, the message is redacted or removed.