The first one has 5 digits instead of 6, and the other has only two digits and no leading 0:

These phone numbers can be split up into a nation code (without prefix), an area code with 2 digits (with the leading 0 if it's at the beginning of the whole number) and the local number with 6 digits.

The nation code, area code and local number may never contain a 0 at the start unless it is the prefix for dialing out of the country or it is at the beginning of the area code if there is no country code.