- If some house numbers are missing, Waze will try to interpolate the missing house number of the requested address. This works in case of a lot of house numbers in a small spot or if house numbers are uniformly distributed in space between 2 registered house numbers. This interpolation works with a maximum step of 20, for both sides: the even and odd numbers. It is enough when the numbers 1, 21, 41 and 2, 22, 42 etc are entered.But preferably enter all house numbers: in this way you ensure that Waze uses the Waze house numbers and not Google Maps house numbers. The interpolation method is only used as the last step in determining the destination location.