Receive SMS online
on shared public numbers
Pick a country, open a number's inbox, and read incoming texts in your browser. No account. Numbers are shared — anyone with the link sees the same messages.
What this site is
InstantNum is a phone-number inbox viewer. We list numbers from several countries; when a text arrives on one of them, it shows up on the number's page. You do not rent the number and you do not get exclusive access — the inbox is public.
That makes it fine for checking an OTP during development, trying a service once, or signing up somewhere low-stakes. It is a bad fit for banking, email recovery, or anything you would mind a stranger reading.
Available numbers are updated regularly. If one option does not work for your use case, choose another number or country.
Why people use it
Mostly for one-off sign-ups, app testing, or keeping a personal number off a form you do not trust yet.
Countries
Numbers from 2+ countries — pick one that matches what the app expects
No sign-up
Open a country page, choose a number, read the inbox. That is the whole flow.
Free
Public inboxes cost nothing. We make money from ads, not from selling numbers.
Keeps your SIM out of it
Useful when you want a code but do not want to hand your real number to every app.
How it works
Receive SMS online in seconds—pick a country, select a number, and open the inbox.
Select a country
Start with a country page like United States.
Choose a number
Pick an Online number and click Check Inbox.
Receive SMS
View verification codes instantly in the public inbox.
Use temporary numbers for popular apps
Browse by service to find numbers for messaging apps, social media, dating, e-commerce, gaming, and more.
Messaging & VoIP
Signal, Telegram, WhatsApp, and similar apps.
Social Media
Instagram, X, Reddit, and more.
Online Dating
Tinder, Bumble, and similar platforms.
E‑commerce
Amazon, eBay, marketplaces and checkout flows.
Gaming & Communities
Discord and game verification.
More services
Explore the full list and pick a country.
Perfect for Developers, Testers, and Privacy-Conscious Users
Whether you're testing applications, protecting your privacy, or need quick verification—InstantNum has you covered.
Testing & Development
Perfect for QA teams and developers testing SMS verification flows, OTP systems, and two-factor authentication integrations.
Privacy Protection
Keep your personal phone number private when signing up for services, newsletters, or platforms you're trying out.
Quick Verification
Get instant access to verification codes without waiting for carrier delivery or dealing with registration processes.
Important Security Notice
Public inboxes are visible to everyone. Never use these numbers for banking, financial services, or any sensitive accounts. These numbers are perfect for testing, development, and non-sensitive verifications only. For important accounts, always use your personal phone number.
Frequently Asked Questions
Quick answers about public inboxes, safety, and verification.
What is a disposable phone number?
Are these inboxes private?
Can I receive verification codes for WhatsApp/Telegram/Signal?
Do you support receiving calls or sending SMS?
Why are some messages missing?
What if SMS is delayed?
Get the InstantNum App
Use the app for a smoother experience and better mobile support.