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> In the early days of IPv4 many big companies did not NAT IPv4. I was at a company that did this. Our workstations all had routable public IPv4 addresses.

A lot of big universities did this and even still do this to a large degree. They got huge IPv4 allocations early and there was no scarcity.

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All of the early Internet companies I worked at were like that, up until roughly 2000: public IPs direct on the desktop. My 90's home network was also like that. I had a /24 block from the old class C "swamp" space. I still have it, actually. It's legacy space, no ARIN fees.

In my current company (related to academic institution that introduced internet to my country) every office workstation has FOUR public (but firewalled of course) IPv4 addresses. And every user has an unique VPN IPv4 address on top of that.

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