Where is the telephone number 999-999-9999 coming from?

I get calls from this phone number Monday through Friday and when I answer there is no one there. Who is calling and what is goinig on? This is madding when you are trying to get something done.

First, the terminology: in a phone call, the calling party's number, in this case, 999.999.9999, is called an ANI.

You should know that ANI is easily manipulated anywhere along the line in a phone call. Meaning, I can call you and make any number I want appear on your caller ID. Period. I can call you from my phone and make it look like your mom is calling you, if I know what her number is.

I actually can and have done this. I work for a telecommunications company and our equipment lets us easily accomplish this.

So, to answer your question, there is absolutely no way for you to know who is calling you just by looking at your caller ID display. You can never be sure that the number coming up on the screen is actually meaningful.

Most likely 999-999-9999 is just a dummy value that has been filled in somewhere along the line. Contact your phone company for help.

I get the same calls sometime..
someone made a comment without knowing about my unknown number a few days later and said it was probably from a jail.
This does get frustrating.. very.
I know blockbuster here calls from a wierd number... a continuous all one number number.

There is no such number.

To find others experience with this number see http://whocalled.us/lookup/9999999999

could be a computer calling.....usually its 777-777-7777....or someone is using caller-ID spoofing....which is really dumb....! if its bothers you that much, call your phone-provider and complain!!