Address grids in the Philippines?

Are there address grids in the Philippines?
Here we take a look at some four digit addresses in Manila:

We seem to see some patterns, but are not sure if they are like the grids in
https://www.jidanni.org/geo/house_numbering/grids/define.html
Is there some ordinance or city planning document mentioning the
logic in how the numbers are arranged?

But address grids are a compromise that paper maps need to do because they can’t display individual building addresses due to space issues. Electronic maps don’t have that problem.

Ah, but with paper maps and their address grids graticule on the margins, one can grasp the logic of the entire system in one glance.

With (current) electronic maps, one needs to deduce the logic by comparing addresses one by one until finally figuring out where the two baselines are. Or in the case above, ending up with one big question mark: does the Philippines really have address grids?