Who called from 4842724450

I get a call from this number daily No one is there and it cant be called back.

This number has been showing on my callerid for several days now, usually around 10- 11 am and then once in the afternoon at 4:30 pm (EST).  The caller id says 'group billing'. They don't leave a message and nothing happens if you call the number back.

are these bill collectors

i also keep getting called from this number its from northampton pa. i put i traced on it. now its disconnected.

484-272-4450 This number calls everyday between 10-11am EST and then hangs up after 2 rings.  Annoying!