An SMS notification is a text message your device receives to alert you about something
An SMS notification is a short text message sent to your phone to tell you that something has happened. SMS stands for Short Message Service. Unlike a regular text from a friend, an SMS notification comes from a business, app, or service — your bank confirming a transaction, your delivery company telling you a package arrived, your doctor's office reminding you of an appointment, or your email app letting you know you have a new message.
The notification appears on your phone as a text message in your messaging app or as a pop-up alert on your screen, depending on your phone's settings. You do not have to open an app or log into a website to receive it — the message comes directly to your phone number through the same network that carries regular text messages.
SMS notifications are different from push notifications, which come through apps and the internet, or email notifications, which arrive in your inbox. SMS uses the cellular network itself, so it works even if you have no internet connection and even if you have not installed an app.
Key Takeaways
- SMS notifications are text messages sent by businesses and services to alert you about account activity, deliveries, appointments, or security events.
- They arrive through your phone's cellular network, not through an app or the internet, so they work anywhere you have cell service.
- You can usually turn SMS notifications on or off in your account settings with the service sending them, or block them at the phone level.
- Two-factor authentication SMS messages are security codes you must enter to prove your identity when logging in from a new device.
Why services send you SMS notifications
Businesses use SMS notifications because they reach almost everyone with a phone, they arrive when ready, and they do not require you to have downloaded an app or checked a website. A bank sends an SMS when you make a large purchase so you can spot fraud when ready. A delivery company sends one when your package is out for delivery so you know to be home. A doctor's office sends a reminder the day before your appointment so you do not forget.
SMS notifications are also used for security. When you log into your bank account from a new computer, the bank may send you a code by SMS that you must type in to prove it is really you. This is called two-factor authentication or 2FA. Even if someone steals your password, they cannot log in without that code, which only you receive on your phone.
The reason services choose SMS over other methods is reliability. A text message will reach your phone even if your internet is down, even if you have not opened an app in months, and even if you switched phones recently (as long as you kept the same number). An email might end up in spam. A push notification requires you to have the app installed. SMS just works.
How SMS notifications appear on your phone
When an SMS notification arrives, your phone displays it in your default messaging app — usually the built-in app that came with your phone. On Android, this is often Google Messages or Samsung Messages. On iPhone, it is the Messages app. The notification also typically shows up as an alert on your lock screen or home screen, depending on your notification settings.
You can read the message without opening the app — it appears in the notification shade or notification center. If you want to reply, you open the messaging app. Some SMS notifications are one-way only, meaning you cannot reply to them (like a shipping update), while others allow you to respond.
Your phone treats SMS notifications the same way it treats text messages from people you know. They count toward your text message limit if you have one, though most phone plans today include unlimited texting. If your phone is off or out of service when the message arrives, it will be waiting for you when your phone comes back online.
Two-factor authentication codes sent by SMS
A common type of SMS notification is a security code for two-factor authentication. When you log into your bank, email, social media account, or other sensitive service from a new device, the service sends you a six-digit code by SMS. You type that code into the login screen to prove you are the real account owner.
These codes usually expire after five to ten minutes, so you need to enter them quickly. If you do not receive the code, you can usually request it be sent again, or you can use a backup method like an authentication app or a backup code the service gave you when you first set up two-factor authentication.
If you receive a two-factor authentication code you did not request, do not share it with anyone and do not type it in. It means someone else tried to log into your account. Change your password when ready and contact the service if the attempts continue.
Controlling which SMS notifications you receive
Most services let you turn SMS notifications on or off in your account settings. Log into your bank, email, delivery app, or other service on a computer or in the app, find the notification or communication settings, and look for an option to disable SMS alerts. Some services let you choose which types of notifications you want — for example, you might want delivery updates but not promotional messages.
You can also control notifications at the phone level. On Android, open your messaging app, find the conversation with the sender, and mute notifications for that number. On iPhone, do the same in the Messages app. You can also block the number entirely if you do not want to receive any messages from it.
Be careful about turning off SMS notifications for security purposes. If your bank or email service sends you a code for two-factor authentication, you need to receive those messages to log in. Only disable notifications for promotional or informational messages you do not need.
SMS notifications versus other types of alerts
SMS notifications are one of several ways services can reach you. Push notifications come through apps you have installed and require an internet connection. Email notifications arrive in your inbox and can be filtered or missed. In-app notifications only appear when you open the app. Phone calls reach you when ready but require someone to answer.
SMS is the most reliable for urgent or important messages because it does not depend on an app being installed or the internet being available. It is also the most intrusive — it appears on your lock screen and makes a sound or vibration. Services use SMS for things that matter: security codes, account alerts, appointment reminders, and delivery updates.
If you want to reduce the number of SMS notifications you receive, prioritize turning off promotional messages and marketing alerts. Keep security codes and important account notifications enabled so you do not miss critical information.
Frequently Asked Questions
Do SMS notifications cost me money?
No. SMS notifications are sent to you at no charge. If you have a phone plan with limited text messages, they do count toward that limit, but most modern plans include unlimited texting. Check your plan details if you are unsure.
Can I get SMS notifications if I do not have unlimited texting?
Yes, but each notification counts as one text message toward your limit. If you receive many notifications and have a limited plan, you may want to turn some off or ask the service to use email or push notifications instead.
What should I do if I stop receiving SMS notifications from a service?
First, check that your phone has cell service and that your messaging app is working. Then log into the service's website or app and verify that SMS notifications are still enabled in your settings. If they are enabled but you still do not receive messages, contact the service's support team.
Is it safe to share a two-factor authentication code with someone?
No. Never share a two-factor authentication code with anyone, including customer service representatives. Legitimate companies will never ask you for this code. If someone asks for it, they are trying to access your account without permission.
Can I receive SMS notifications on a tablet or computer?
Not directly — SMS is designed for phone numbers, and tablets and computers do not have phone numbers. However, some services offer alternative notification methods like email or push notifications for devices without phone service. Some phones can forward SMS messages to other devices, but this depends on your phone model and carrier.