Available Sublevel Domains   IS, COM.IS, EDU.IS, GOV.IS, INT.IS, NET.IS, ORG.IS 
Other restrictions details  IDN notes: Only letters of the English alphabet, numerals, hyphens and the letters áéýúíóþæöð may be used in domain names. Icelandic applicants can register an unlimited number of domains.

Foreign applicants can only register domains based on a Trademark registered in Iceland. Only one domain per trademark can be applied for. 
Min Characters per Domain Name 
Max Characters per Domain Name  63 
Purely numeric domain  Yes 
IDN offered   
Reserved words list / link   A domain name shall not begin or end with a hyphen, and shall not contain a hyphen in both third and fourth position. Ace-encoded names can be max 59 characters. 
Name Server registration needed  Yes 
Zone Preload  Yes 
Mail Address  Yes 
Local DNS required  Yes. Details are available at https://www.isnic.is/domain/req.php 
Minimum number of name servers 
Maximum number of name servers 
Dispute Resolution Policy  ISNIC domain naming policy 
Dispute Resolution Policy Link  https://www.isnic.is/domain/rules.php#9. 
NIC Registration Agreement  https://www.isnic.is/domain/rules.php