Singapore Number Porting

Here you will find a detailed list of requirements for Singapore number portability. See Telnyx guidance and requirements.

Port your Singapore phone numbers to Telnyx. This guide covers requirements, timelines, and the porting process for local and national numbers in Singapore.

Portable Number Types


Number Type	Portable	Port Type
Local Numbers (Level 6)	✅ Yes	DEL or DID/DDI
National Numbers	❌ Not available	—
Toll-Free Numbers	❌ Not available	—
Mobile Numbers	❌ Not available	—

Expected Timeframes

Typical processing times from submission to FOC (Firm Order Commitment):


Port Type	Expected Timeframe
DEL (Simple)	6–7 business days
DID/DDI (Complex)	8–18 business days

Note: These are expected timeframes between carriers. Delays may occur if the losing carrier is slow to respond.

Understanding Port Types

DEL (Direct Exchange Line) — Simple Port

Select DEL for:

Single-line PSTN services
Standard telephone services
Numbers without complex features

DID/DDI (Direct Inward Dialling) — Complex Port

Select DID/DDI for:

Number ranges or blocks
Numbers with complex services
PABX or private system numbers
Numbers that allow direct dialling without operator intervention

Important: If porting a number block, you must port the full range or have your current carrier disassociate the specific numbers you wish to port.

Document Requirements

For Company Accounts


Document	Details
LOA	Country-specific LOA signed by the authorized person
Business Registration	Business Registration Certificate or Certificate of Incorporation
Work Permit	Work Permit or Employment Pass (for non-citizen applicants)
Latest Invoice	From current carrier

For Personal Accounts


Document	Details
LOA	Country-specific LOA signed by the end-user
NRIC/Passport	National Registration Identity Card or Passport
Work Permit	Work Permit or Employment Pass (for non-citizen applicants)
Latest Invoice	From current carrier

Download LOA

📄 Download the Singapore Letter of Authorization

Before Completing the LOA

Save in PDF format (non-editable)
Fill in all designated fields correctly
Ensure information matches your current carrier's records exactly
Signature must be from the authorized person (company) or end-user (personal)

Changing Your FOC Date

Once a porting date has been confirmed with the losing carrier:

Date changes require at least 72 business hours (SGT) notice before the scheduled cutover
Contact Telnyx porting support to request a change

Porting Process

Gather all required documents based on the account type
Submit port request through Mission Control
Select the correct port type (DEL or DID/DDI)
Upload LOA and supporting documents
Telnyx submits a request to the losing carrier
Receive FOC confirmation with activation date
Numbers activate on the scheduled FOC date

Need Help?

For questions about Singapore number porting, contact porting@telnyx.com.