Merge the tracking info available from several sources

Picture this, a chinese seller sends you the tracking number of a package sent via registered airmail.

To get all the tracking info available about this package you need to first input the number using china post as the courier on posted, and then you need to add the same package again selecting your local postal service as the courier.

Would it be possible to autodetect the destination country and join all this information automagicaly?
(something similar to what www.trackitonline.ru does)

Thanks,