People who use the Google Maps service are reporting in the Google Maps Help that their house no. listed on Google Maps are not appearing it seems to only affect few countries not only the US but others countries like Germany, Austria, New Zealand and many more.
Have a look on the screen shot of a maps of Germany from some years ago with consisting the house numbers and the current one with H No.
it is true that Google has updated the maps internationally a while ago, but that time house no. were there but now they are not available.
Forum discussion at Google Maps Help.