Telegram is a messaging app that has gained popularity over the years due to its security features, flexibility, and ease of use. It allows you to send messages, voice notes, images, and videos. Telegram also enables you to create groups, channels, and bots. However, one of Telegram's most important features is the ability to see someone's number. In this article, we will discuss why you can see someone's number on Telegram.

Telegram uses phone numbers as the primary means of identification and verification. This means that when you sign up for Telegram, you are required to provide a valid phone number. Telegram then sends a verification code to the number you provided, which you must enter in the app to complete the registration process.

Once you have registered, Telegram stores your phone number in its servers, which allows it to synchronize your contacts and identify your Telegram contacts. Therefore, when you add someone to your Telegram contacts, the app automatically checks if the phone number is registered on Telegram. If it is, the person's name and profile picture will appear on your contact list.

So, why can you see someone's number on Telegram? The answer is simple. Telegram needs to know your phone number to enable its features, and it needs to know the phone numbers of other users to identify them and allow you to communicate with them. Therefore, when you add someone to your contacts, you can see their number because Telegram has it stored in its servers.

However, it is important to note that Telegram takes your privacy and security seriously. Telegram does not share your phone number with anyone, including other users, and it does not use your number for any purpose other than identifying you on the app. Moreover, Telegram offers end-to-end encryption for your chats, which means that your messages are protected from interception and decoding by anyone, including Telegram.

Telegram also offers several security features that allow you to control who can see your phone number. For instance, you can hide your number from other users, including your contacts, by enabling the "Nobody" option under the Privacy and Security settings. You can also show your number to your contacts only, or to all Telegram users.

Another feature that allows you to control who can see your number is the ability to create usernames. Usernames are unique identifiers you can create instead of using your phone number as your primary identification. With a username, other users can add you to their contacts without knowing your phone number. You can also search for other users by their usernames, making it easier to find and connect with people on Telegram.

In conclusion, you can see someone's number on Telegram because the app needs to know your phone number to enable its features and identify your contacts. Telegram takes your privacy and security seriously and offers several features that allow you to control who can see your number. Therefore, you can confidently use Telegram, knowing your information is safe and secure.