I recently moved here and really like that website that need your address here often have just 2 fields house ___ postcode ____ you fill them in and typically

I recently moved here and really like that website that need your address here often have just 2 fields house ___ postcode ____ you fill them in and typically it shows you the street name as confirmation (or complains that the house doesnt exist in the post code. Zip+4 was supposed to work in the US for this but i dont think people liked remembering another 9 digit number