Office of the Communications Authority - Information Leaflets

Skip to content

Loading...

I am looking for...

ADVANCED SEARCH

Printed at 1:53pm on 5 July 2025
Webpage -- https://www.ofca.gov.hk/en/consumer_focus/galley/information_leaflets/index.html

Communications Services
Consumer Tips on Smart Use of Communications Services

Telecommunications Services

SMS Sender Registration Scheme

SMS Sender Registration Scheme

Use Communications Services Smartly. Stay Vigilant against Telephone Scams.

Use Communications Services Smartly. Stay Vigilant against Telephone Scams.

Do Not Purchase Wi-Fi 6E/7 Access Points from Overseas for Use in Hong Kong

Do Not Purchase Wi-Fi 6E/7 Access Points from Overseas for Use in Hong Kong

Real-name Registration for SIM Cards

Real-name Registration for SIM Cards

Avoid Inadvertent Use of Mobile Roaming in Boundary Areas

Avoid Inadvertent Use of Mobile Roaming in Boundary Areas

Registration Required for the Provision of Public Wi-Fi Services on Private Premises (Updated)

Registration Required for the Provision of Public Wi-Fi Services on Private Premises (Updated)

Do Not Install Illegal Mobile Phone Signal Boosters

Do Not Install Illegal Mobile Phone Signal Boosters

Radiation Safety of Radio Base Stations

Radiation Safety of Radio Base Stations

Withdrawal of Licensing Exemptions for Personal Handy Phone System (PHS) Radiocommunications Apparatus

Withdrawal of Licensing Exemptions for Personal Handy Phone System (PHS) Radiocommunications Apparatus

Know More about IP Telephony Service

Know More about IP Telephony Service

Illegal Use or Possession of Radio Equipment

Illegal Use or Possession of Radio Equipment

Using Walkie-talkies in Hong Kong

Using Walkie-talkies in Hong Kong

Use of Mobile Phones at Hong Kong-Shenzhen Western Corridor and Shenzhen Bay Port

Use of Mobile Phones at Hong Kong-Shenzhen Western Corridor and Shenzhen Bay Port

Stay Smart. Look for the CA Label.

Stay Smart. Look for the CA Label.

Look for the CA Label when Buying Radiocommunications Equipment

Look for the CA Label when Buying Radiocommunications Equipment

Lost Your Mobile Phone on Travel? Contact Your Mobile Service Provider Immediately to Avoid Unexpected Roaming Charges

Lost Your Mobile Phone on Travel? Contact Your Mobile Service Provider Immediately to Avoid Unexpected Roaming Charges

Look for Service Information when Purchasing a Calling Card or Re-sold Telecom Service

Look for Service Information when Purchasing a Calling Card or Re-sold Telecom Service

Stay Smart. Know More about Mobile Phone Safety Standards.

Stay Smart. Know More about Mobile Phone Safety Standards.

Telephone Plug and Socket System in New Look

Telephone Plug and Socket System in New Look

What You Need to Know about Calling Number Display

What You Need to Know about Calling Number Display

Mobile Number Portability in Hong Kong

Mobile Number Portability in Hong Kong

Emergency Communication in Country Parks by Mobile Phones

Emergency Communication in Country Parks by Mobile Phones

Broadcasting Services
Ensuring Good Television Reception upon Use of Spectrum in 700 MHz Band for 5G Services Notes for Residents on “Migration of Six Digital TV Programme Channels to New Transmitting Frequencies” A Guide to Programme Classification on Domestic Free Television Improving TV Reception - Tips for Laying TV Cables Satellite Master Antenna Television (SMATV) System

Unsolicited Electronic Messages Ordinance
How to Unsubscribe from Commercial Electronic Messages?

Others
Customer Complaint Settlement Scheme for Telecommunications Industry How to Lodge a Complaint with CA against a Telecommunications Operator Enhanced Protection for Consumers. Shop with Peace of Mind.

Access to Information Tender Notices Registration of Consultants Subscribe to eNewsletter

"Scan QR Code" in WeChat and tap "..." to share.

Scan me!