Be aware of scammers impersonating as IMDA officers and report any suspicious calls to the police. Please note that IMDA officers will never call you nor request for your personal information. For scam-related advice, please call the Anti-Scam helpline at 1800-722-6688 or go to

Guidelines related to in-building telecom space and facilities and information on land-use submission

Telecom riser ducts are reserved for exclusive use by Public Telecommunication Licensees (PTLs) and Telecommunication Service Licensees (TSLs), referred to as FBOs, who provide fixed services to buildings. Any party seeking to use the riser ducts who is not a licensed PTL or TSL must first seek permission from IMDA to ensure compliance with regulations governing the use of telecommunications infrastructure in Singapore.

This set of guidelines is applicable to a building owner/developer (which may include a managing agent or a Management Corporation Strata Title holder) or a tenant who intends to lay cables in a multi-storey and/or multi-tenanted commercial or residential building.

IMDA generally has no objection to the height or land use proposal. For land use proposals, please note that developers or owners need to ensure these requirements.