Hey champ, need to know how the item was sent..... Australia post website isnt showing anything for that tracking number. May have been through another company though.
When using International Express with Australia Post, there is no tracking on the Aus website, however, once the item is received by the US postal service (USPS) it becomes trackable on the USPS site, but only after it has been accepted by USPS.
Your particular item was lodged on the 7th Feb and USPS has a record that it was accepted by Australia Post, however there is no further information available until it is sorted by USPS.