Can you tell me the numbers Fred Hanna uses?

Can anyone tell me all of the phone numbers of the collection agency, "Fred Hanna & Associates, 1655 Enterprise Way, Marietta, GA," so I can block them. They are calling repeatedly about a credit card debt that was supposed to have been paid by a "in the event of death or permanent disability" insurance policy issued by the credit card company. They don't want to be bothered now so they turned it over to Washingtom Mutual and Washington Mutual turned it over to Fred Hanna. When I tell them LISTEN TO ME, I was insured they change the subject and question my moral integrity. Well, I have been very polite with them but I am ready to tell them to fook off. I decided instead I will just block their numbers.

So far I have only blocked their main number 770-988-9055. If anyone knows of any other numbers they use please tell me so I can block them too. I am not scared of them. I will represent myself pro se if I have to, I just want them to quit aggravating me because outside a court of law it is my intention to have nothing to do with them.