Telegram Login Code Not Arriving? Sign-in Options, Two-Step Verification and What to Do If You Lose Your Phone

A Telegram account is tied to a phone number: whoever controls the number controls the account. Missing codes, a new phone or a lost phone all have the same fix: keep at least one device signed in, then add two-step verification, a passkey and a login email as extra layers.

1. Before you sign in: number format and device

• Enter your number in international format: +country code + number, for example +1 for the US. An extra leading 0 or a missing country code is a common reason codes never arrive.
• Telegram only works with mobile numbers. The FAQ says landlines are not supported.
• Sign in with an official mobile app first. The developer docs say that in some cases only official mobile apps can receive SMS or call codes; desktop and third-party apps use other methods such as Telegram messages, email, QR codes or passkeys.

Telegram Web login page (web.telegram.org). QR code blurred.

2. Not getting the SMS code?

Check the official Telegram chat on a signed-in device

If you recently used the account on another device (or another Telegram app on the same device), Telegram may send the code inside Telegram instead of by SMS. Open any signed-in device and look in the chat with "Telegram", the verified account with a blue check.

Use a call or email instead

• Phone call: some carriers don't support voice codes, or require two-step verification to be on first.
• Login email: if you sign in often, Telegram asks you to verify an email, and future login codes go there instead of SMS.
• Passkey: create one on a signed-in device, then sign in on a new device with your PIN, fingerprint or face, no SMS needed.

Still stuck: use the official form

If none of this works, contact Telegram through the login-problems form linked in its FAQ. Ignore anyone who messages you offering to "unban" your account or receive codes for you.

With two-step verification on, a new login asks for your extra password.

3. Four security settings to turn on right after login

1. Two-step verification: Settings → Privacy and Security → Two-Step Verification. Set a password. After that, the phone number alone can't sign in.
2. Passkey: Settings → Privacy and Security → Passkeys, for SMS-free logins on new devices.
3. Review devices: Settings → Devices (or Privacy and Security → Active Sessions in some versions) and terminate anything you don't recognise.
4. Check self-destruct timing: by default an account offline for 18 months is deleted with its cloud messages and contacts. For a backup number you rarely open, set a longer period in Settings.

Settings → Privacy and Security.

Find Two-Step Verification under Privacy and Security.

Change the password or set a recovery email here.

4. Lost or stolen phone

Telegram identifies users only by phone number, and its FAQ says it can't help if you have neither the number nor any signed-in device. So:

Settings → Devices → Terminate All Other Sessions. Device details blurred.

5. FAQ

What can I use as a username?

Letters a-z, digits 0-9 and underscores; usernames are not case-sensitive. A username lets people find and message you without your number, so skip it if you don't want strangers to reach you.

My new account is limited before I sent anything?

Telegram's spam FAQ says some numbers trigger an overly harsh response because of a previous owner's activity or because they are certain virtual/VOIP numbers. If you're sure you broke no rules, contact @SpamBot and explain.