If you're unable to receive two-factor authentication (2FA) codes on your office phone number, it's likely because office numbers are typically landlines or VoIP numbers, which often do not support SMS, especially from services like Instagram, Google, or other secure platforms.
🔍 Why This Happens:
Office numbers are not mobile/cellular lines, so they can’t receive 2FA SMS messages.
2FA systems often block messages to landlines or virtual numbers for security and compatibility reasons.
SMS routing issues may prevent delivery, or the platform may not even attempt to send a message to non-mobile numbers.
✅ What You Can Do:
Use a mobile phone number instead – ideally, a number tied to a cellular carrier.
Try the voice call option, if available – Instagram and other platforms may offer to call with the code.
Use an authenticator app – like Google Authenticator, Microsoft Authenticator etc.
Update your security settings to use a different method of verification that works with your available devices.