Scammer probably spoofing a legitimate phone number. Here is a transcript of the prerecorded message they left me — Hello my name is Alexa Miles this is the tax debt and settlement notification all US citizens on our state list may qualify for the new tax debt compromise which is part of the American rescue plan the open enrollment period has started but is only for a limited time this may allow you to significantly reduce or eliminate your tax debt or make it non-collectible please call me at my **signed number 619-612-9476 this message has been marked completed by Alexa Miles