Who called from 6172742456

I have received 6 phone calls from this number since 4/18/14. They always call between 5 and 7pm and have never left a voicemail.

The calls you are receiving are from the National Environmental Law Center.  They request donations to allegedly sue the government over environmental issues.  You can look them up at nalconline.org.

This number not only calls often without leaving a message but also hangs up as soon as I answer the phone once I decided to answer it. The same thing has happened every time I try to answer the phone with this number

I have had three calls from this number. If I answer it no one says anything and the call is soon disconnected.

No message, but it is supposedly the National Environmental Law Center asking for donations.