Help sim card

[toadman40]

my wifes inspire keeps saying sim full delete messages . she has less numbers and less messages than my phone and i dont get this message. could it be from her old sim card from 2006. mine was replaced last year with a new one/

 

[2manyPHONES]

Her sim is from 2006? if so then whatever phone she was using it in probably had stuff stored on it.