Hong Kong Phone Number Format Guide for Local & Intl Calls

A Hong Kong telephone number format includes a country code and a subscriber’s number. Unlike many other countries, it does not include any regional codes or mobile carrier codes.

Country Code: Hong Kong’s country code is 852, which is added before the local phone number when calling from overseas.

Subscriber’s Number: The subscriber's number refers to the phone number of the intended recipient. In Hong Kong, phone numbers are eight digits long, except toll-free numbers, which are nine digits long.

Note: Hong Kong’s cell phone number format starts with 4, 5, 6, 8, or 9, while fixed landline numbers begin with the digits 2 or 3.

To make a local call within Hong Kong, simply dial the 8-digit number of the recipient.

Landline Number: 2345 678X

Note: The initial digit ‘2’ helps to identify that the particular number is a fixed landline numbers.
 

Mobile Number: 5123 456X

Note: The initial digit ‘5’ helps to identify that the particular number is a mobile phone numbers.
 

Toll-free Number: 800 123 456

• 800: Toll-free prefix
• 123 456: Subscriber’s number

When calling internationally, the Hong Kong phone number structure includes an international access code (exit code), the Hong Kong country code, followed by the 8-digit number.

Here’s how to call Hong Kong from overseas:

Step 1: Dial the exit code of the country from which you are calling. For instance, the US’s exit code is 011, while the UK's is 00.

Step 2: Enter Hong Kong’s country code, i.e., 852.

Step 3: Dial the eight-digit phone number.

Note: You can replace the exit code with the “+” symbol when dialing from a mobile phone.

Landline: 011 852 2345 678X or +852 2345 678X

• 011: Exit code (when calling Hong Kong from the US)
• 852: Hong Kong country code
• 2345 678X: Subscriber’s landline number

Mobile: 011 852 5123 456X or +852 5123 456X

• 011: Exit code (when calling from the US)
• 852: Country code of Hong Kong
• 5123 456X: Receiver’s mobile number

Toll-Free: 011 852 800 123 45X or +852 800 123 45X

• 011: Exit code (when calling from the US)
• 852: Hong Kong country code
• 800: Toll-free prefix
• 123 45X - Subscriber number

When contacting a Hong Kong phone number, consider the time zone and calling costs to ensure your call reaches the recipient at a reasonable time and cost.

Hong Kong operates under the Hong Kong Time Zone, which is UTC+8. Be aware of the time difference when making calls, especially if you are calling from a region with a significantly different time zone.

For example, if you are calling at 8 AM from New York, United States (which follows Eastern Time Zone), it will reach 8:00 PM in Hong Kong (since Hong Kong is 12 hours ahead). That means your morning call could reach someone in Hong Kong late in the evening, possibly during their dinner or rest time, which might not be convenient.

Therefore, you must always consider the time zone differences to prevent calling at inconvenient hours for your recipient.

The cost of calling Hong Kong, especially from abroad, can be quite expensive. Though the exact cost depends on the service provider, traditional carriers typically charge more for international calls. To save costs, you can consider using the VoIP (Voice over Internet Protocol) phone service. These services offer virtual phone numbers, which allow you to make a calls over the internet, typically at a lower cost compared to traditional carriers.

The Hong Kong telephone number format is simple. You just need to dial an 8-digit local phone number for domestic calls. And, for an international call, simply add the international dialing prefix and country code before the local phone number. However, it’s important to be aware of calling costs, especially when dialing from abroad, as international calling rates can be expensive.

By acquiring a Hong Kong virtual phone number from Calilio, you won't have to worry about international calling rates. You can call anyone in Hong Kong from anywhere in the world at local rates via the internet.

To obtain a Hong Kong number, sign up with Calilio, select a plan, and purchase your desired phone number.

Hong Kong mobile numbers start with 4, 5, 6, 7, 8, or 9, while fixed landline numbers begin with 2 or 3.

852 is the country code for Hong Kong. So, if you get a call from 852, the caller is probably from Hong Kong.