Reverse phone directory of numbers and Map for 202-436

I have been receiving calls from this number lately. Today was a third or fourth call from them. A guy or a girl with strong accent talks and asks to speak to my hubby saying that he has been approved for $ 10,000 grants from Federal Reserve bank. I had been nice enough to tell them that i know that they are spam and please stop calling my no. But they crossed all the limits this morning. When i asked the girl what was the call about she said it is a personal call and she wouldn"t give out any information to me. As usual i told her that if this is a spam call stop bothering us. Then she told me i better know what i was talking about and i better understand the meaning of personal call. She kept going on and on. She was rude. After i hung up on her. she called me back and asked why i had hung up on her and that i wasn"t allowed to do that. It was outrageous!!! I really had a bad start of monday morning. Beware guys! I wish there was a way to report these guys and get them arrested.