Called - left no message.

no message - don't know anybody in that state - blocked

Called no msg.

scam

it's portfolio recovery.  they left no message.  they are quite tenacious around collecting old debts.  as debt collectors go, they're not entirely horrible.  but MAN they're persistent.  best thing to do is try to work out a payment plan.  you can block whatever number they're using to call you today, but they'll use a different one tomorrow.