Just got this number on my cell phone.  It's rare to get these types of calls since very few people know my cell #.  I'm going to block it

Called my cell and did not leave a message. My cell is also private so this one is getting blocked.

Second call today within 30 minutes from unknown callers. The first one was from a known scammer from Nebraska. This one was from Ohio. No one spoke when I answered the call. I'm suspicious that this might be a scammer also.

I didn't pick up, they left a voicemail.  A recorded message said, "Your eligibility expires today. Consider this your final notice. Press one to be connected with a live operator."
By intentionally failing to mention who they are or what the heck they are talking about, this type of message is sure to get a lot of unsuspecting people to press 1.
NEVER PRESS 1.

Got the call, no message, will block it