Who called from 8474635737

indian lady says calling from washinton mutual, i dont believe what she says.

I also got this call, do you have any accounts with washington mutual?

I didn't answer, but tried to call back.  Caller ID showed Chartered Mkt.  I got a recording saying to leave a message.  I didn't.  I'm on the do not call list and plan on reporting this number through that also.
I'm guessing from the other comments that this may be a scam number!!!

I got a call today from this number.  I didn't answer it and they didn't leave a message.  I don't have any accounts with Washington Mutual so there wouldn't be any need for them to contact me.

Repeated calls over several months now.  I do not answer.  But it is very annoying.  How can I stop this?