Text messaging, also called SMS (Short Message Service), is a way to send written messages from one mobile phone to another over cellular networks. Unlike phone calls where you hear someone's voice, text messages are typed words that arrive on someone's phone as a written message. This communication method has become one of the most common ways people stay connected—according to data from CTIA (a wireless industry organization), Americans send and receive over 2 trillion text messages annually.
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Before you can send your first text message, you'll want to understand the core components that make texting work. Every mobile phone has a messaging app or SMS application built into it. This is where you'll compose, send, and store your text conversations. Your phone's messaging app connects to your cellular network provider (like Verizon, AT&T, T-Mobile, or smaller regional carriers), which actually transmits your message to the recipient's phone.
There are a few important things to know about how text messaging works. First, text messages are limited to 160 characters when you use standard SMS. That's roughly equivalent to 2-3 sentences depending on how long your words are. When you write longer messages, most phones will automatically split your text into multiple SMS messages that arrive as a series. Second, text messages work on any mobile phone—you don't need internet access, a data plan, or a smartphone to send texts. Third, each text message sent or received typically counts as one unit on your phone plan, though most modern plans include unlimited or large numbers of texts monthly.
One practical thing to consider: text messaging costs vary by phone plan. Some plans include unlimited texts, while others charge per message. Before sending a large volume of texts, it's worth checking your specific plan to understand how your carrier handles text messages. You can usually find this information in your plan details or by calling your service provider.
The first concrete step in sending a text message is finding where your messaging app lives on your phone. On most Android devices, you'll look for an icon that resembles a speech bubble, envelope, or the word "Messages" on your home screen. On iPhones, there's an app called "Messages" with a green icon showing a white speech bubble. Some older phones may label this app as "SMS," "Text Messages," or sometimes carry the name of your carrier (like "AT&T Messages" or "Verizon Messages").
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If you can't see the messaging app on your home screen, don't worry—it's typically pre-installed on all phones. On Android phones, swipe up from the bottom of your screen or access your app drawer (usually represented by a grid icon). This shows all available apps on your device. Look through the list for any app with "Message," "SMS," or "Text" in the name. On iPhones, swipe down from the top-left corner to access the app library, then search for "Messages" using the search function.
Once you locate the app, tap it to open it. When you first open your messaging app, you may see a blank screen or a list of previous conversations if you've been texting before. Don't be concerned about either scenario—both are normal. If this is your first time using the app, you'll simply see an empty message list. Some phones may ask you to set this as your default messaging app or confirm that you want to use it. You can proceed with these simple confirmations.
A useful tip: on newer phones, you might see options to use other messaging platforms like WhatsApp, Facebook Messenger, or Google Messages as alternatives. For the purposes of learning basic SMS text messaging, stick with your phone's native messaging app—it's the most universal method that works with any phone user, regardless of whether they have a smartphone or an older device.
Now that you've opened your messaging app, creating a new text message is straightforward. Look for a button or icon that says "New Message," "Compose," or shows a plus sign (+) or pencil icon. This is usually located at the bottom or top of your screen, depending on your phone type. Tap this button to begin writing a message.
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After tapping the compose button, your phone will open a blank message screen. The first field you'll see is labeled "To:" or "Recipient." This is where you'll enter the phone number or contact name of the person you want to text. You have two ways to do this: type the person's phone number directly, or if their contact information is saved in your phone's address book, type or select their name and the phone number will fill in automatically.
Here's the process broken down into specific actions:
A practical takeaway: save frequently-contacted people in your phone's address book beforehand. This makes sending texts faster since you can simply type their name rather than remembering and entering their full phone number each time. Most phones allow you to add contacts through a "Contacts" or "People" app, and the process typically involves tapping an add button, entering the person's name and phone number, and saving it.
The message body is where you'll type what you actually want to communicate. This field usually expands as you type, allowing you to write multiple lines. On most phones, you'll use a keyboard that appears at the bottom of your screen—either a traditional QWERTY layout (like a computer keyboard) or a number pad with letters grouped on each number key (called a T9 or multitap keyboard on older phones).
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When typing your message, keep in mind the 160-character limit for standard SMS text. This means your message needs to be concise. Here are some examples of appropriate text message length:
If you write something longer than 160 characters, your phone will automatically split it into multiple messages. For instance, a 300-character message becomes two separate text messages that arrive in sequence. Your recipient sees them as part of one conversation, but you may be charged for two texts on your plan.
Text messaging has developed its own informal style and conventions. Many people use abbreviations to keep messages shorter: "u" for "you," "r" for "are," "omw" for "on my way," or "ttyl" for "talk to you later." However, this is entirely optional. You can write full sentences and proper grammar if you prefer, and many people do, especially for professional or formal communication. The tone you set depends on your relationship with the recipient and the content of your message.
One consideration: text messages don't carry tone of voice or facial expressions, so messages can sometimes be misunderstood. Be thoughtful about how your words might be interpreted. A message that seems joking to you might come across differently to the recipient. If you're communicating something important or emotional, a phone call is sometimes more appropriate than a text.
Once you've typed your message in the message body field, it's time to send it. Look for a "Send" button, usually located near the message field at the bottom right of your screen. On some phones, it appears as a right-pointing arrow, the word "Send," or an icon that looks like a paper airplane. Tap this button to transmit your message.
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After you tap Send, several things happen
This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.