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Domain Name > Overview on IPv6 capacity in ccTLD Root Servers

Last updated: March 2010

If 253 ccTLD name servers listed in IANA Root zone database*1 have respective IPv6 addresses?
  150 of the them, YES (59.29%)
Double check if the 150 ccTLD name servers have IPv6 address resolution function (using DNS Lookup commend in TWAREN *3and TANet *4 IPv6 environment)
  149 of them, YES (99.33%) *5

If 21 gTLD name servers listed in IANA zone database have respective IPv6 addresses?
  15 of them, YES (71.43%)
Double check if the 15 gTLD name servers have IPv6 address resolution function
  15 of them, YES (100%)
 
*Notes
1. IANA Root Zone Database: http://www.iana.org/domains/root/db/
2. Each ccTLD may have multiple root name servers, a ccTLD is considered "have respective IPv6 address" when at least one of its name servers have listed IPv6 address.
3. TWAREN refers to "Taiwan Advanced Research & Education Network"
4. TANet refers to "Taiwan Academic Network"
5. The testing was conducted by National Center for High-Performance Computing.