Let's explore a few scenarios, starting with a very conservative estimate, say 10% of the IPv4 addresses published in the AWS JSON (79M IPv4 addresses) are used for a year. That's 7.9 Million IPv4 addresses x $43.80, almost $346 Million a year. At 25% usage, that's nearly $865 Million a year. And at 30% usage, that's a billion dollars.
Despite the growing scarcity of IPv4 addresses and their increasing acquisition costs in recent years, until recently AWS charged only for public IPv4 addresses that were allocated but not attached to an EC2 instance.
Developers have expressed concerns and emphasized the financial implications associated with this change.
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