.SG

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

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

Registry

TLD	-
Registry	SGNIC
Dispute Policy	Rules
Registrar	1api GmbH
WHOIS-Server	whois.nic.sg
WHOIS-Update	5 minutes
Min. Characters	2
Max. Characters	63
Character Set	Letters and numbers Hyphens ("-"), however not at the beginning or directly in front of the TLD IDN: allowed
Limitations	Registrant Contacts: Required: 1 / Maximum: 1 Admin Contacts: Required: 1 / Maximum: 1 Tech Contacts: Required: 1 / Maximum: 1 Billing Contacts: Required: 1 / Maximum: 1
{{{Possible Extensions}}}
IDN capable	Yes
Restore capable	Non-Realtime
Handle Updates	Supported (partially)
Registration System	Real-Time
Allowed number of NS	2 to 13
Registry Nameservercheck	No
Host IP-Addresses Type	IPv4
Hosts managed as	Object
Root Nameserver Update	several times a day
SEC DNS Interface	not available
Transferclass	Pull
Transfer Periods	1Y
Transfer Authcode required	Yes
Transfer Lock	Yes
Owner Change by	Trade
Trade Periods	-

Periods

{{{Possible Extensions}}}
Registration Periods	1-2 years
Add Grace Period	0 days
Accounting Period	-7 days
Finalization Period	-2 days
Failure Period	29 days
Payment Period	-61 days
Deletion Restorable Period	30 days
Deletion Hold Period	0 days
Explicit Renewals	Yes
Renewal Periods	1 year

API

Domain Registration

Domains can be registered in Real-Time with the API AddDomain command.

command = AddDomain
domain  = (DOMAIN)

REQUIRED

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

OPTIONAL

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

X-SG-RCBID = <TEXT>
X-ADMIN-IDNUMBER = <TEXT>

Domain Transfer

The transfer has to be initiated by the gaining registrar and can be requested with the API TransferDomain command.
A valid Authorization Code must be provided to initiate a transfer successfully. You may obtain the authorization code from the losing registrar.

command = TransferDomain
domain = (DOMAIN)

REQUIRED

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

OPTIONAL

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

Delete Domain

Domains can be deleted with the API DeleteDomain command.
There is a Deletion Restorable Period of 30 days and a following Deletion Hold Period of 0 days.

command = DeleteDomain
domain = (DOMAIN)

Restore Domain

Restores can be processed automatically within the specified deletion restorable period after the expiration date. Please use the command RestoreDomain.

command = RestoreDomain
domain = (DOMAIN)

OPTIONAL

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

Ownerchange

All contact information with the exception of registrant Name, Firstname and Organisation can be updated through the ModifyDomain command.
In order to change the owner you have to request a trade with the TradeDomain command. This can be done through our web interface or through our API:

command = TradeDomain
domain = <DOMAIN>
ownercontact0 = <CONTACT>

OPTIONAL

X-SG-RCBID = <TEXT>

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

TLD specific

Registration

.COM.SG

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

.SG and .COM.SG

If the registrant is an individual from Singapore, an administrative contact located in Singapore with X-ADMIN-IDNUMBER is required, the local presence service cannot be used in this case.
If you provide registrant and administrative contact from a different country, a local presence service will be provided automatically (free of charge).
If the registrant is an organization 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	SingPass
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	CorpPass
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

Domain Transfers

Inbound Domain Transfers

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

command = TransferDomain
domain = <domain>
auth = <auth>
ownercontact0 = <contact handle>
admincontact0 = <contact handle>
techcontact0 = <contact handle>
billingcontact0 = <contact handle>
nameserver0 = <name server>
nameserver1 = <name server>

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 approve the transfer if the losing registrar does not decline the transfer.

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

Outbound Domain Transfers

.SG domains are LOCKED by default and no Authorization Code is set at the registry – a transfer is not possible.
You need to unlock a .SG domain in order to have an Authorization Code set at the registry.
.SG domains can only be unlocked if they do not utilize the local presence service.

In order to transfer a domain away you have to remove the transfer lock (epp status clientTransferProhibited). This can only be done if the local presence service is not in use. A few minutes after removing the transfer lock you will receive an UPDATE::SUCCESSFUL message containing the new Authorization Code. At the same time the Authorization Code will be stored as property AUTH of the domain and also a property X-SG-AUTH-EXPIRATIONDATE indicating when the Authorization Code will expire (after 14 days).

Outbound Internal Transfers

If the domain should be transferred to another reseller of HEXONET the domain has also to be unlocked and the same AUTH is required.

Deletion

To delete a .SG domain with immediate effect please contact our support team at [email protected].

Addons

The following overview shows you all available Domain Addons which can be used for this special kind of TLD. It also shows the respective API parameters which are required to activate the Domain Addons:

Addon Class	Parameter to (de)activate *1)	Renewal term *2)	Affected Parameters *3)
Trustee	X-SG-ACCEPT-TRUSTEE-TAC = 0 | 1	1 year	ASCIO-LOCAL-PRESENCE
Trustee	X-SG-ACCEPT-TRUSTEE-TAC = 0 | 1	1 year	ADMINCONTACT,ASCIO-LOCAL-PRESENCE

*1) Parameter to (de)activate: When accessing our backend through the API, you can either activate the addon with X-SG-ACCEPT-TRUSTEE-TAC=1 or deactivate it with
      X-SG-ACCEPT-TRUSTEE-TAC=0

*2) Renewal Term: Is the minimum renewal term of the "Addon Class"

*3) If you are using a "Trustee" Domain Addon normally the original owner contact or the original admin contact or both are replaced by a contact provided by the trustee provider.
      
      

RegistrarOC

Restore Process

To restore a domain as a RegistrarOC customer, you simply have to execute the RestoreDomain command. HEXONET directly forwards the restore request to the registry, which performs the restore in short time. As soon as the restore has been completed by the registry, the domain will get assigned to your account with the original domain data.

Please do not initiate a restore directly at the registry (e.g. using the registrar webinterface). All restore operations must be performed through our system.