You may have received your call from 206-632-7734 (a Seattle, WA Call Center) or from a Local Call Center Like this one (They are proud of having about a dozen satellite offices). If your answering machine picked up they probably hung up. Working America is a subsidiary of the AFL-CIO. Their office is located in Washington, DC and they are exempt from the 'Do Not Call List' prohibition. The President of the AFL-CIO is RICHARD TRUMPKA and Director of Working America is KAREN NUSSBAUM... the phone number for the executive offices is 202-637-5137. Give them a call and let them know what you think about their calling practices.