It's an organization that helps people with disabilities work at home. www.ntiathome.org
I too have received one call from them and they left a voice mail.
This number has called me two days consecutively last week and then once every 6 months or so they call again. Caller ID only shows ths number as "Massachusetts call". There is never a "live" person with phone calls from this number. The recording always says they will offer rides to those disabled in the household to take them to and from work. Obviously since I don't live in Massachusetts, the state one resides in is of no concern to this entity.Having someone disabled in my household, I called the Social Security Administration as they are not supposed to be giving personal information like disability status and personal phone numbers out. I was told that in no way would the U.S. Government (including the Social Security Administration) give out any information of their recipients. Nor did they know who these people in Massachusetts are. They advised calling one's state attorney general to report the calls. This has been going on for a few years now, so I've learned to ignore this call when it pops up on my Caller ID. This entity will not leave a message on a voice mail or answering machine.