Can’t Login to Telegram? Fix ‘Invalid Phone Number’ or SMS Delays

1. Double-Check Your Phone Number Format

The most frequent cause of the “Invalid Phone Number” error is entering your number incorrectly. Make sure you:

• Include the correct country code (e.g., +1 for the US, +44 for the UK).
• Exclude any extra zeros or spaces.
• Enter only digits after the country code—no punctuation or special characters.

2. Check Your Network Connection

Poor or unstable internet can prevent SMS codes from arriving or cause login requests to fail. Try these steps:

• Switch Between Wi-Fi and Mobile Data: Sometimes one network is more stable than the other.
• Restart Your Router: If you’re on Wi-Fi, a simple router reboot can fix temporary connectivity issues.
• Use a Different Device: If possible, try receiving the code on another phone to confirm if the issue is device-specific.

3. Ensure SMS Can Be Received

If your verification code never arrives, it could be a carrier or device-level issue:

• Contact Your Carrier: Check if your plan or carrier blocks shortcodes or international messages.
• Disable SMS Blockers: Some security apps or phone settings may block messages from unknown senders.
• Try the Call Option (If Available): Telegram sometimes offers a voice call alternative if SMS is delayed.

4. Update or Reinstall Telegram

Outdated or corrupted app files can cause login issues:

• Update the App: Check the Google Play Store or Apple App Store for updates.
• Reinstall Telegram: If all else fails, uninstall and reinstall the app to ensure a fresh setup.

5. Verify You Aren’t Banned or Restricted

In rare cases, Telegram might restrict or ban certain numbers, especially if they’re flagged for spam or suspicious activity:

• Contact Telegram Support: If you suspect a ban, reach out to Telegram Support with details about your number and usage.
• Use a Trusted Number: Low-quality virtual numbers can be flagged more easily, so consider switching to a reliable provider if you’re using one.

6. Try Again Later

If you’ve requested multiple codes in a short time, Telegram may temporarily block new requests. Wait at least 24 hours before trying again to avoid the “Too Many Attempts” error.

Conclusion

Dealing with “Invalid Phone Number” errors or delayed SMS codes can be frustrating, but by double-checking your phone number format, ensuring a stable network connection, and updating the app, you can resolve most login issues. If all else fails, contacting Telegram Support or switching to a reliable phone number can get you back into your account.

We hope this guide helps you fix your Telegram login problems quickly and easily!