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.SG is the official country code Top-Level-Domain (ccTLD) of Singapore. Companies located in Singapore, as well as companies or corporations who have business with Singapore can register .SG domains.

Introduced 1988
Country Singapore
Registry SGNIC
IDN Capable Yes
Webpage Register .SG







Dispute Policy


  • Registrant Contacts: Required: / Maximum:
  • Admin Contacts: Required: / Maximum:
  • Tech Contacts: Required: / Maximum:
  • Billing Contacts: Required: / Maximum:

{{{Possible Extensions}}}

Allowed number of NS



{{{Possible Extensions}}}


Domain Registration

Domains can be registered with the API AddDomain command.

command = AddDomain
domain  = (DOMAIN)


ownercontact0 = (CONTACT)
admincontact0 = (CONTACT)
techcontact0 = (CONTACT)
billingcontact0 = (CONTACT)
nameserver0 = (NAMESERVER)
nameserver1 = (NAMESERVER)


auth = <TEXT> | <NULL>
transferlock = 0 | 1 | <NULL>
subuser = <TEXT> | <NULL>


Domain Transfer

There is a special procedure to handle a domain transfer. Please contact our Support-Team if you should need further information.

command = TransferDomain
domain = (DOMAIN)


ownercontact0 = <contact handle>
admincontact0 = <contact handle>
techcontact0 = <contact handle>
billingcontact0 = <contact handle>
auth = <TEXT>


subuser = <TEXT> | <NULL>
period = <PERIOD>
transferlock = 0 | 1 | <NULL>

Delete Domain

Domains can be deleted with the API DeleteDomain command.
There is no Deletion Restorable Period.

command = DeleteDomain
domain = (DOMAIN)

Restore Domain

Restores can be processed automatically up to 59 days after the expiration date. Please use the command RestoreDomain.

command = RestoreDomain
domain = (DOMAIN)


renewalmode = <NULL> | <TEXT>
subuser = <TEXT>




The company registration number has to be provided as X-SG-RCBID if the new registrant is an organization from Singapore.

TLD specific



.COM.SG domains can only be registered for companies.

.SG and .COM.SG

The admin-c has to be an individual from Singapore. if you provide an administrative contact from a different country then a local presence service will be provided automatically (free of charge).
If the registrant is an organization from Singapore then the company registration number has to be provided as X-SG-RCBID.
If the admin-c is an individual from Singapore then the respective SingpassID has to be provided as X-ADMIN-IDNUMBER.

additional parameter X-SG-RCBID
role country of origin entity value
registrant SG organization company registration number
registrant SG individual n/a
registrant other organization n/a
registrant other individual n/a

additional parameter X-ADMIN-IDNUMBER
role country of origin entity value
admin-c SG organization n/a (admin-c may not be an organization from Singapore)
admin-c SG individual Singpass ID
admin-c other organization n/a (admin-c will be replaced by local presence service)
admin-c other individual n/a (admin-c will be replaced by local presence service)

Valid format of the Singpass ID
SingPass ID (or NRIC) refers to the individual's National Registration Identity Card which has to consist of exactly one letter ("S", "T", "F" or "G") followed by seven digits followed by one checksum letter.
Example: S1234567A

Special SG transfer procedure

Additionally to the authorizationcode, the registry requires that the current contact information of the domain will be submitted with the transfer request. To do so, you have to use the ownercontact0, admincontact0, techcontact0 and billingcontact0 parameters in the following syntax:

command = TransferDomain
domain = <domain>
auth = <auth>
ownercontact0 = <contact handle>
admincontact0 = <contact handle>
techcontact0 = <contact handle>
billingcontact0 = <contact handle>

Be sure that you've created valid contact handles with the current contact information of the .SG domain you wish to transfer the respective domain. After 7 days, the registry will reject the transfer if the losing registrar did not react.

Several registrars also need a so called AGNT number before they will approve an outgoing transfer, our AGNT number is AGNT-1643.


To delete a .SG domain with immediate effect please contact our support team at



No special procedures.