Wow! So much for the old memory bank.
Several companies switched to Internet Protocol version 6 (IPv6) at 00:01 GMT on Wednesday.
The new system is necessary to prevent the internet running out of available addresses for new devices.
Experts said users should not notice any difference in their web use, and new devices should be using the new system as standard.
(BBC)"The new, larger IPv6 expands the limit to 2^128 addresses—more than 340 trillion, trillion, trillion! Enough for essentially unlimited growth for the foreseeable future."