Did you call them back? You can go to the web site http://www.reversephonedirectory.com/ and do a reverse phone lookup. The number above comes back as unlisted but for about 19 dollars you can have them get who it belongs to and an address. Then - you can write or call them and let them know that you don't appreciate being woken up in the morning and having them call you names and if they do it again you'll have a restraining order placed on them and report them to the police.