Who called from 8723337749

this number called me n i didnt recognize the area code

333-7749 is the un-official/ untraceable number for the national threat assessment center (NTAC). That number repeats under every area code in the U.S.
3337749 translates alpha-numerically as "deep six"
What you recieved was a call to search for, analyse  or collect data for the voice print recognition database.