Just got a quiet call on my land line

Have received about 15 calls in the last 2 days from that number.  All quiet....  Any clue about it?

Have received a total of 12-14 calls from this number over the past 3 days.  They never leave a message.

I've gotten about 5 of these on my land line in the last hour. The phone rings 3 times and that's it. Obnoxious!!

I'm getting those calls, too, usually with no message, and one time I picked up and didn't say anything, but the line was quiet.  One time I did get a recorded message from ConEdison, my electric provider, that I believe came from that number, asking if my power had been restored. (I had a power outage for several days due to the recent snow.) I can't be 100 percent sure it was ConEd since I wasn't home when the message was left, but the recorded message time seemed to match the Caller ID time from the 347-334-4378 number.

Did any of you recently have a power outage that you reported to your electric provider?  If so, it might by their automated system calling back to see if your power is back up and on line.