I don't know how these people get my number.

Calls at leading once a week. No response

I received a call today but did not see it until later. I tried to call back to see who it was calling. It automatically has a busy signal. I get all kinds of scam and telemarketing calls on my new cell # asking for the person that had this # prior. She must have signed up for a lot of stuff to get this number on so many lists! Annoying as heck.

There is nothing special about your number. Anyone can call it, accidentally or on purpose.
What is special is that your name is associated with the number. If the caller did not mention your name, then it is probably a scammer phishing for people who might believe what the scammer tells them.

These people keep calling and I dont know anybody with this number in Texas.