Merger after merger after merger followed by a massive adoption of public cloud (using Direct Connect/Express Route for hybrid connectivity) has led at least two very large FinServs I worked for adopting CGNAT (100.64/10) for parts of their internal networks.
In both cases RFC1918 was used throughout their global network and while not fully used, had become highly fragmented over time.
Been around in other cities for as long as I remember. The nearest junction to where I grew up in Glasgow in the 80's allowed crossing in all directions at one time.
In both cases RFC1918 was used throughout their global network and while not fully used, had become highly fragmented over time.