Once the domain Registrar sends a confirmation notice that your domain name has been registered or transferred, it can take up to 3 to 5 days before the domain name becomes fully active.
All DNS servers and Internet Service Providers must update their DNS tables to reflect any new web site locations. The rate at which this happens can vary among providers. New domain name registrations are usually live on the InterNIC’s main root servers within 24 hours of registration completion. You may need to allow additional time for this information to trickle down to all the DNS Servers on the Internet.
Transfers will take approximately 72 hours from the time the Registrar receives the OK from either the Administrative or Technical contacts to be live in the InterNIC root servers.