Number calls and doesnt say anything and then hangs up

it is getting really annoying receive these calls, especially because my area code is 209, so I never know if it is a real number.

I have caller ID the call comes across as CALIFORNIA CALL 209-134-5678 I have not answered it for obvious reasons don't know the clowns, I also have a AC 209. They have called daily without leaving any msg's on my mail box [***].

They said something about "civil procedures division."  They should know no phone exchange starts with 134.

I guess 123-4567 was too obvious.

I just got a call for 209-134-5678..I said hello & got nothing..then I said Como esta..& got instant hang-up:)
Next off to Phone registery..