Broadband providers, IT manufacturers and websites have been urged to upgrade to the next-generation of Internet Protocol - IPv6.
To mark World IPv6 Launch Day, the Internet Society has reiterated the importance of a smooth transition to IPv6 addresses.
The current IPv4 protocol is fast running out of unique addresses, threatening to stifle the growth of the internet worldwide.
The last blocks of the 4.3 billion IP addresses enabled by IPv4 were assigned to the Regional Internet Registries in February 2011.
However, IPv6v offers more than 340 trillion, trillion, trillion addresses, providing an almost infinite number of combinations for service providers and web users to utilise.
Leslie Daigle, Chief Internet Technology Officer at the Internet Society, commented: "The support of IPv6 from these thousands of organisations delivers a critical message to the world: IPv6 is not just a 'nice to have'; it is ready for business today and will very soon be a 'must have'.
"We believe that the commitment of these companies to deploy IPv6 will ensure that they remain industry leaders."