Mike, I received a call this morning from the same number and no message was left.
Caller ID is "N SHORE MKTG"
On Call Back the line rings but no answer. Likely a sales call but could be a misdial. Until there are more reports of calls from this number I guess we are in the dark as to the source and purpose of the call.
I think I've found the source of these calls.
http://www.merchantcircle.com/business/North.Shore.Marketing.781-322-1224
Seems like they are in the TV Guide renewal (or rip-off) business, a comment on their web page is:
"This company conducts telemarketing calls, ignoring 'do not call" lists under the guise of attempting to get folks to re-new TV Guide subscriptions, Completely unreputable. "
If you have subscribed to TV-Guide they (TV-Guide) can legally call. This seems like a different company representing themselves as TV-Guide, just a guess.
A second comment states:
"A comeon to renew TV Guide @$1.99 which is really $228.00(for 114 issues which is not explained until after you accept offer)........... a very sneaky marketing plan..........people are paid for this practice?. "