The number provided does not pull it up.

Take EDIG for example, they have some patents pending and the numbers start with the year, then a / then 3 numbers, then 3 more.

IE:  US14/328,425 for a Nunchi continuation patent, benefiting the lead patent.

When searching for a publicly published patent pending, the US is dropped to do the search.

Can you look in this further please, or correct me if I'm wrong.