Numbers with this prefix were first introduced in 2010.While 5123599089 was originally issued with the info above, the owner of the phone number (512) 359-9089 may have transferred it through a process called porting.
Caller type: Telemarketer
I get calls from this number EVERY day. I finally answered it a few days ago and spoke with live person who was trying to sell extended car warranty. I told her my number was in the "Do Not Call" Registry and to stop calling. She said she would make a note of it. Of course....today, another call from same number. I am just going to add this number to the blocked callers list.