You need only do that if the number is out of country

I got that number 603 422 00 00  I will like to call back that number it is very important and he doesn't work. when I look at it it show the passport agency  where is my passport now . can you tell me what to do to contact this people

Why would the passport agency be calling since I did not apply for a passport?

Your identity may have been stolen

Yes, Legit. Passport Office.