Moving your local Singaporean number to RingCentral? Follow these steps to ensure your number transfer goes smoothly.

If you are porting in to RingCentral

If you are transferring 100 or more numbers from the same carrier, please let us know here as we assist with project-based porting. Your number must be active with your provider in order for it to be transferred to RingCentral. You may cancel your phone service after the transfer is complete.


Before you begin your number transfer request, please check with your current service provider to ensure your numbers are active and your account has the correct requirements stated below. You will need to provide the following information exactly as it appears on record with your current provider: 
  • Company name and address
  • Name of the account holder (authorised to make changes to the account)
  • Service address (physical/emergency address where the phone numbers currently ring)
  • Current service provider name and address. Please contact your reseller for the underlying provider information
  • The correct post code and Main Billing Number associated with the numbers are required
  • Phone number(s) to be transferred
  • Signed letter of authorisation (LOA. You may download the copy on the number transfer process)
    • The LOA should be printed on company letterhead or should at least bear the company logo on the space provided
    • Should be hand signed by the authorized person from the company
    • The company stamp should be imprinted on it
  • Completed Porting Form
    • Requires the hand signature of the authorized person affixed and the stamp of the company
  • Acknowledgment letter/email from the end-user (if early termination charges are involved)
    • This is to be determined by Singtel.
    • Singtel will inform RingCentral during the porting process if a customer is required to pay an early termination fee and how much it would be.
    • RingCentral will relay this information to the customer to get confirmation that they are aware and if they would like to proceed with the porting.
    • Once RingCentral receives confirmation, RingCentral forwards it to Singtel to progress the porting.
  • Additional information/documentation may be requested at the time of port. For example, the carrier may request a photocopy of an ID
Please review the information carefully as a mismatch will restart the order to day 0. If you are unsure about your current service information, contact your current service provider. 

Before you begin porting

Please be reminded of these points begin you begin the number porting process: 
  • Number portability is ONLY supported for numbers that are level 6 number range.
    • 6xxx xxxx - Fixed line services inclusive of fixed-line voice-over-IP services
    • No other number ranges are portable.
  • Snapbacks/Rollbacks/Emergency Restore are NOT supported
  • Partial ports are NOT allowed
  • Supported Area code: National Number (6)
  • Toll-free: 
    • Callers must dial the number as 800-XXX-XXXX to connect.
    • International reachability is NOT allowed.
    • Numbers are NOT allowed for callback services.


Porting time is from Monday to Friday, between 9:00 AM and 5:00 PM in the country of origin. The porting window is 0-3 hours. This process usually takes around 10 to 16 weeks to complete after you’ve submitted your request through your RingCentral account. However, the timing may depend on your current service provider or the complexity of the request.

How it works

1. Verifying
The information needed to port your number will be collected when you create your order in your RC Admin Portal. For complete instructions on how to submit your request, please check Transfer your International Number to RingCentral.
Screenshot of the porting step
Screenshot of the porting step
Screenshot of the porting step
If you choose an option that can inhibit the port request, a caution will appear in yellow under the question with additional information. If red, the system will not allow the agent/customer to proceed further with the port request.
Screenshot of the porting step
After entering your billing telephone number (BTN) and checking the transfer BTN box (as pictured below), a popup will display all numbers entered for the port request. Leave the box unchecked if you do not want to transfer the BTN. However, there must be additional numbers in the box below the BTN field.
Screenshot of the porting step
Screenshot of the porting steps
You may also select to choose a temporary number (TN) or go to the next step to add more numbers.
Screenshot of the porting steps
Screenshot of the porting steps
Complete the information in each section. After this, select the type of account and follow these instructions: 
  • Name - Business name and person authorized to make changes to the account
  • Service - Location where the numbers are active
  • Others - Such as contact information, current and previous service providers
Screenshot of the porting steps
During this process, you will need to upload the necessary documents to complete your porting request. Some carriers may require additional verification information. Please keep in mind that the order is not complete until the required documentation has been added to the case. If this happens, we will contact you.
Screenshot of the porting steps
You may also add comments, if any, for your existing carrier. If multiple people need porting updates, please add their email addresses.
Screenshot of the porting steps
Screenshot of the porting steps
Screenshot of the porting steps
Warning sign
The order is not complete until the required documentation is added to the case. 
2. Porting
Our Number Transfer team will send your transfer request to your current service provider.  Once the order is complete, you will receive an email stating that we have submitted the transfer request. 
3. Checking the status of your current number transfer
After completing your request online, you can see the status of your request under Phone System > Phone Numbers >Transferred and Vanity > Transfer Orders
Screenshot of the porting steps
You may email the LOA and any other country-specific required documents to global.porting@ringcentral.com.
4. Success!
We will place test calls to verify the calls are routing to the RingCentral network. Once the calls are routing via RingCentral correctly, we will notify you via email to confirm that your number(s) have ported successfully. If this is a project-based port, an agent will contact you directly via phone or email.

Additional Resources

Need help?

The Number Transfer Department can be reached via email at global.porting@ringcentral.com.
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