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Singapore Satellite Positioning Reference Network


Singapore Satellite Positioning Reference Network

Welcome to SiReNT,

SiReNT is an SLA initiative developed to support your real-time high precision Positioning, Navigation and Tracking (PNT) as well as Global Navigation Satellite System (GNSS) needs. SiReNT is also developed with differential technologies which improves accuracy and reliability for global navigation.

Get SiReNT Companion App

Please note that from 11 April 2021, you will be required to login to government digital services for businesses (G2B) using Singpass instead of Corppass. For more information, visit

SLA Customer Service Counter is currently located at the Taxpayer and Business Service Centre, Level 1, Revenue House. Please be informed that the visit to the Service Centre is strictly by appointment only. We thank you for your patience and understanding.

Operating Hours
8am-5pm (last queue ticket issued at 4pm)

SLA Customer Service Enquiry Line
Please note that the operating hours of our SLA Customer Service Enquiry and Quality Service Manager (QSM) Line will also be updated as below:
Mondays-Fridays: 8am-5pm

For any enquiries, please contact us via our online feedback form.


Sales & General Enquiries

  • For any enquiries : Please contact us via our online feedback form.

  • By mail: Singapore Land Authority,
    Taxpayer and Business Service Centre
    Level 1, Revenue House
    55 Newton Road
    Singapore 307987

Technical Support

Operations Hours:

9am - 5pm, Monday - Friday