Who called from 4256588939

No response when I picked up.

They have called 11 times now -- no message, or all dial tone for message. I tried calling back. It keeps you on hold for 7 minutes and then hang up. The number's in Kirkland, Washington. If they did this to one of my servers, it would be called a denial-of-service attack.

2012-06-05 15:43:41    4256588939    Hangup    ANSWERED    01:08
2012-06-05 12:17:41    4256588939    Hangup    ANSWERED    01:08
2012-06-05 10:07:33    4256588939    Hangup    ANSWERED    01:51
2012-06-04 16:50:06    4256588939    Hangup    ANSWERED    01:09
2012-06-04 12:39:42    4256588939    Hangup    ANSWERED    01:09
2012-06-04 12:13:57    4256588939    Hangup    ANSWERED    01:08
2012-06-01 16:01:12    4256588939    Hangup    ANSWERED    01:09
2012-05-31 15:54:34    4256588939    Hangup    ANSWERED    01:43
2012-05-31 12:08:05    4256588939    Hangup    ANSWERED    01:50
2012-05-30 14:41:50      4256588939    Hangup    ANSWERED    01:08
2012-05-30 13:25:53     4256588939    Hangup    ANSWERED    01:01

These calls need to stop! They call at least 4-5 times a day and as late as 8pm.  How can I get them to stop calling??

I've also been getting calls from this number.  425-658-8939.  They just hang on the line and never say anything. You can tell it's not an automated machine.  Not sure what the point is.

constantly callin and i cannot get in touch with anyone. really pissing me off.