This appears to be some type of telemarketer or call center. I am getting frequent calls from it so I am now just blocking them. They disconnect if you ask who is calling or anything much... I assume they are working some kind of scam.
Phone number: 925-203-3811
is located in Pittsburg, California.
Its exchange 203 is managed by MCI WORLDCOM COMMUNICATIONS, I.
The number is currently on switch number HYWRCAMCDS0 (switch is a technical specification for phone hobbyists) .
Around 100% of people reported it as "Telemarketer"
You are the 2nd person to search for it here. There has been a total of 1 comments left about the number.