They call and don't say anything

Does anyone know what number this is? Is it a scam, company or just an individual number? If anyone has any information I would appreciate it. They have been calling for past few weeks but I haven't answered/never have picked up phon call.

I've gotten five calls from this number today and I didn't answer, finally I decided to answer and there was nobody on the other line and they hung up after about 10 seconds when I called back it said the number was not in service. But Im continuing to get calls from this number.

I have had constant calls from this number and another frim Texas. No one is there, they leave voice mails and call at ALL hours of the night.

Same here, I got 3 calls today from this number.