Weird result on SearchResults API


I use the Pipedrive SearchResult API to search for persons from the phone.
It’s ok for most cases.
But, I don’t understand some results that seem wrong.

An exemple :
I search persons with number 0660938839
The api returns one contact with this phone 0493886840

The matched_queries is phone_local_startsWith

Is this result normal for this matched_query ?
If so, what is the explanation ?

Thanks for your responses !

Does the contact have any additional numbers that it might be matching with?

Also, do you have any other examples similar to this so I can do some testing?