There are about 20 different numbers they use, I block all I see.

They say they are froma  drug company, heavy indian accent. They keep calling no matter how many times you tell them to take your number off the list

Have received calls every other day, sometimes two and three  in one day from this number and other 645-871 numbers.  Have screamed at the person on the other end of the line.  Have told them I wanted to speak to their supervisor supposedly and raised my voice telling them to take our phone number of their calling list.  Was told that a person has to say three times in a row DO NOT CALL, DO NOT CALL, DO NOT CALL to get of their list but so far this has not happened.  Next time they call I am going to get my whistle and blow it as loud as I can into the phone and if that doesn't stop them then maybe they will be deafened.

0116458712553 This number calls my cell phone all the time, how the heck do I block that # or prevent this...

I received a call from this number today and when I tried to call back it stated that my call could not be completed as dialed...I also received a call from 1-645-871-2554 and get the same msg when I try calling it back. Whoever it is, they never leave a msg.  My guess is that it's a bill collector or a telemarketer. :(

What is this number