We got a call from this number today at 10:12 am and didn't answer. The caller ID was BURLINGTON MA. When I called back (our number is hidden by default on outgoing calls) I heard a recording which said "Thanks for calling. The survey you were called for has now finished." This is the same recording which I have heard when calling back other such numbers. They disguise themselves as a survey in order to circumvent the do-no-call registry. The number will be added to our call blocker.