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There Are More Possible Internet Addresses in IPv6 Than Atoms on Earth
IPv6 supports 340 undecillion unique addresses (3.4 x 10^38). Earth contains roughly 10^50 atoms, but the number of IPv6 addresses per square meter of Earth's surface is still about 6.7 x 10^23 — Avogadro's number.
Why It’s Fascinating
We could assign a unique internet address to every atom on the surface of several Earths and still not run out. IPv6 was designed to be so vast that humanity should never face address exhaustion again, even if we connect trillions of devices.
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