Caller ID said "Pine Envservice."  I dialed *67 and then their number (curiosity).  Someone actually answered but I couldn't make out what they said "Pine .....?..." so I asked them to repeat it 3 or 4 times...still they mumbled and I couldn't understand them so I just hung up. Then I Googled what the caller ID said and came up with this:  

Company Overview of Pine Environmental Services LLC.  I'm not sure if it is them, but probably is since they are in New Jersey and area code 609 is in New Jersey.

You can check them out at:  
http://investing.businessweek.com/research/st ... ivcapId=6870140