These jokers can spoof your caller ID. They can make it display any number, functional or not. If they wanted to they could send 123-456-7890.
If you don't know the number. Let voicemail catch it. You can always call back if the call is/was legit..
I have had several calls from 205-530-3039, no message is left when it goes to voicemail and no one is on the line when I pickup. The call is dropped when I answer.
Been getting calls and it rings 1-2 then hangs up. I won't answer or call back. News had been reporting phone scams about these kind of calls from out of area numbers. They (the caller) wants you to call back then they attach to your number sometimes adding a monthly fee to your mobile service. If you called them back, I would suggest you check with your cell carrier and make sure your account is okay. I don't answer or call back any numbers I don't know. If it's important, they'll leave a message.
Received call two nights in a row. Only rang once. Just entered it into my address book with the others assigned as SPAM so I'll know not to boether with it.