The very noisey message states that they are "calling from Intellimark.  A Marketing Representitive for Public Power".  I have received many calls in last 2 days.

Called like four times today. Probably debt collectors. Their called ID is as long and random as a serial #. It's like V5288598vb785936

It was a call asking me to give them the person who is responsible for my electric bills  this happens all of the time i just told them to get lost.WHat a nuisance

Very Suspicious phone spam.

We also receive very noisey messages on our voice mail that say "calling from Intellimark.  A Marketing Representitive for Public Power".  We received 4-5 calls per day for the past 6 days.  

This is what I found from reverse phone number look up:
Location     Bridgeport, CT, US
Geo-Coordinates     Latitude: 41.17 | Longitude: -73.19
Timezone     (UTC-05:00)
Tower Switch     SMFRCTATW51
Phone Type     Landline

I am also from Ct and they do make a nuisance out themselves.They justcannot get it through there pbrains that I am not the least bit interested I had people even coming to my door trying to sell me stuff for electricity i told them to take a hike.I don't know why they have to keep on calling even when you tell them not to bother with you anymore they just don't listen.