No. MaskOff is designed to reveal calls where the number is hidden, such as No Caller ID, Private, or Blocked calls.
Caller ID spoofing is different: a number is already displayed, but the caller has falsified it. MaskOff cannot determine the true number behind that displayed caller ID.
If a displayed number appears suspicious, avoid relying on it to verify the caller. Do not share passwords, verification codes, or payment information, and contact the organization through a number you trust.