Available Sublevel Domains   AT, AC.AT, CO.AT, OR.AT 
Other restrictions details  No abreviations in first name/last name/ organization name allowed. Field organization name must be filled in (please put firstname lastname when registering for a private person). No postbox-address is allowed. 
Min Characters per Domain Name 
Max Characters per Domain Name  63 
Purely numeric domain  Yes 
IDN offered  Yes 
Reserved words list / link   None 
Name Server registration needed  No 
Zone Preload  Yes. DNS must be configured for the domain before any action. 
Mail Address  No 
Local DNS required  No 
Minimum number of name servers 
Maximum number of name servers 
Dispute Resolution Policy  Yes 
Dispute Resolution Policy Link  http://www.nic.at/en/agb/ag_agb2003.asp 
NIC Registration Agreement  http://www.nic.at/de/agb/ag_agb2003.asp