Question about rooting and installing custom rom on moto x

i have recently got moto x at & t .. i have updated it and it said sim lock or network lock error and ask me for a code , any ways .. my question is what if i root this phone and install some custom rom in it , would it still ask for the network sim code ?

thank you

from xda-developers http://ift.tt/29184fw
via IFTTT