We are a state government agency and have been receiving 3-4 calls a day (generally in the morning) for most of this week (14-19 October 2013). When the phone is answered, there is only silence. A call back to the number gets the standard "We're sorry, your call cannot be completed as dialed."
Called the number from my ID blocked number and the recording identifies them as "Injury Claim Group" and asks you to press 1 to be removed from their list (obviously, I didn't press 1)!