When will the internet run out of space?
Answer:
The current specification for IP addresses: (255.255.255.255)
IPv4 uses 32-bit (four-byte) addresses, which limits the address space to 4294967296 (232) possible unique addresses
The new specification for IP addresses: (3ffe:1900:4545:3:200:f8ff:fe21:67cf)
IPv6 has a vastly larger address space than IPv4. This results from the use of a 128-bit address, whereas IPv4 uses only 32 bits. The new address space thus supports 2128 (about 3.4×1038) addresses.
So the internet will run out of space when our current specification limit is reached (pending switch to the new spec)