We as well are being called by this company. Something needs to be done. I have voice mail and caller ID but no one will leave a message. Then they say that they've been trying to contact you numerous times in a letter that they send.
ARS National Services is a large collection agency with a home base in Rancho Cucamonga, California. They host 5 different call centers. They have also called using 2695094104 and many others.