Call the number back and at the end of the call input your number to be struck off the outbound call list. It's that simple. Further calls is legally considered harassment. Also see www.donotcall.gov for the governments do not call request application. Also you can use the complaints form to lodge a complaint vs the callers.

For Your Information: April 10, 2008
Do Not Call Registrations Permanent and Fees Telemarketers Pay to Access Registry Set
Telephone numbers placed on the National Do Not Call Registry will remain on it permanently due to the Do-Not-Call Improvement Act of 2007, which became law in February 2008. More than 157 million phone numbers are on the National Do Not Call Registry.

Under the Act, the Federal Trade Commission will continue to remove telephone numbers that have been disconnected and reassigned to other customers. Consumers can delete their telephone numbers from the registry at any time by calling 1-888-382-1222 (TTY 1-866-290-4236) ? the call must be made from the telephone number they wish to delete.

The Do-Not-Call Fee Extension Act of 2007 also was enacted, setting the annual fees telemarketers will pay to access the registry in fiscal year 2009 at $54 for each area code of data accessed or $14,850 for access to every area code in the registry, whichever is less. Telemarketers may access the first 5 area codes of data at no charge, and certain exempt organizations will continue to access all data at no charge. For each fiscal year beginning after fiscal year 2009, the fees will be increased at the rate of change of the consumer price index, unless the change is less than 1 percent, in which case the fees will not be adjusted.

TO REGISTER YOUR NUMBER:
Online: www.donotcall.gov
Phone: 1-888-382-1222

913-538-3973 several times a day

Keep getting calls every.few days no message

me too multiple times daily

9135383973 is harassing me call several times a day.

This is a telemarketer. Currently a union called Unite Here is using this number to harass citizens with a specific political purpose. Don't answer it.

This is a great organization - not prank calls.  They are calling to get sponsors for children and the aged in other countries.  We sponsor a little boy thru them and have done so for many years.  It's just too bad that the people they have calling for them do not at least leave a message so you know what they are about.
Their business phone # is 800-875-6564 (or 913-384-6500).

Same thing. No message. I called it back and got a recorded message that it was Strategic Fundraising, whatever that is.

This number shows up but the unknown caller does not leave a message.  Calls began a few days ago and have received 1-2 calls daily from this number.

Got calls couple of times. No message

they call every day it better stop or leave a message

who is calling