How to Call Hong Kong from Singapore: Full Guide to the 852 Country Code

Whether you're staying in touch with friends, managing business abroad, or checking in with family in Hong Kong, knowing how to make an international call from Singapore can save time and reduce costs. In this guide, we’ll walk you through the exact format to dial a Hong Kong landline or mobile number, explain the 852 country code, and share tips to save on overseas call charges.

Understanding the 852 Country Code

The 852 country code is the unique dialing code assigned to Hong Kong by the International Telecommunication Union (ITU). When calling Hong Kong from Singapore, this code must follow Singapore’s international calling code (001).

Here’s the general rule:

• 001 is the international calling code Singapore uses to start an overseas call

• 852 is the hk calling code

• Followed by either the hong kong area code (for landlines) or the mobile number directly

When Do You Need to Use the Hong Kong Calling Code?

You’ll need the hk calling code when:

• Calling a Hong Kong mobile or landline from Singapore

• Using an international SIM or roaming service

• Making a VOIP or app-based call that requires full number formatting

You don’t need to use the code for calls within Hong Kong itself. But from Singapore, it’s essential.

Step-by-Step: How to Dial a Hong Kong Number from Singapore

There are two main cases:

1. Calling a landline

2. Calling a mobile number

Let’s break both down.

Steps to Direct Dial a Hong Kong Landline

To call a Hong Kong landline number from Singapore, follow this format:

How to Dial Hong Kong from Singapore: Landline Call Format

Example: If the local Hong Kong landline number is 2345678 and the hong kong area code is 2, you would dial:

001 852 2 2345678

Always make sure to remove any local or regional prefixes from the Hong Kong number before dialing.

Steps to Direct Dial a Hong Kong Mobile Number

For Hong Kong mobile numbers, the process is slightly different.

How to Dial Hong Kong from Singapore: Mobile Call Format

Example: If the Hong Kong mobile number is 91234567, dial:

001 852 91234567

There are no area codes for mobile numbers. Simply dial the 8-digit number after the 852 country code.

Want to Explore More International Dialing Tips?

Check out our full IDD Calling Codes Guide for Singapore to get codes, formats, and smart tips for calling over 30 countries worldwide.

Best Ways to Save on International Calling to Hong Kong

Calling Hong Kong from Singapore through traditional telecom lines can get expensive, especially if you're on long calls. Here are a few ways to save money while staying connected:

Use App-Based Calling Services

1. WhatsApp, Telegram, FaceTime, or Zoom – These use data or Wi-Fi, not voice minutes

2. Skype or Google Voice – Great for dialing local Hong Kong numbers at lower rates

3. Viber Out or Rebtel – Designed for cheap international calls

Tip: When calling with apps, make sure your recipient also has the same app installed for free app-to-app calls. Otherwise, you may be charged per minute.

Circles.Life Best Plans for Overseas Calling

If you prefer to use your mobile number to stay in touch, here are some of the top Circles.Life plans that include IDD minutes to Hong Kong:

Circles.Life IDD-Ready Mobile Plans

These plans help you avoid expensive per-minute charges, especially for frequent calls.

Other SIM and eSIM Options in Singapore for Hong Kong Calling

Looking for non-contract or travel SIM options? Here are several flexible alternatives:

International SIM and eSIM Plans in Singapore

These are ideal if you're traveling or only need temporary international calling access.

What Is the Time Difference Between Singapore and Hong Kong?

Luckily, both Singapore and Hong Kong operate in the GMT+8 time zone, so you don’t need to worry about calculating time differences when calling. This makes business and personal calls much easier to schedule.

Do I Need to Dial the + Symbol?

When using a smartphone or calling app, you can substitute 001 with a plus sign (+). For example:

• +852 91234567 is the same as 001 852 91234567

Apps and international SIMs often auto-detect the international calling code Singapore uses, so using “+” is perfectly acceptable.

Common Mistakes to Avoid When Dialing Hong Kong

• Forgetting the 001 prefix

• Not including the full 852 country code

• Using the wrong hong kong area code (landlines only)

• Including a local 0 prefix, which should be dropped for international dialing

Always double-check the number format before calling to avoid failed connections or incorrect charges.

Summary: What You Need to Dial Hong Kong from Singapore

Here's a quick recap of what you need to dial a Hong Kong number from Singapore:

1. Start with 001 – the international calling code Singapore uses

2. Add 852 – the official hk calling code

3. Use area code (only for landlines)

4. Dial the rest of the number

Sample Scenarios

Still Unsure?

Need more help with how to use the 852 country code or find the right Circles.Life IDD plan? Contact our support or explore our Help Centre.

Frequently Asked Questions (FAQs)

What is the 852 country code used for?

The 852 country code is used to make international calls to Hong Kong from Singapore and other countries.

What is the Hong Kong area code for landlines?

The Hong Kong area code varies by district but typically starts with 2 or 3 for landlines, and it must be included after the 852 country code when calling from Singapore.

What is the international calling code Singapore uses to dial overseas?

The international calling code Singapore uses is 001, which must be dialed before the country code when calling Hong Kong or any other international destination.

How do I find the correct HK calling code for mobile numbers?

For mobile numbers, the HK calling code is always 852, and no area code is required—just dial 001-852 followed by the 8-digit mobile number.

Are there cheaper ways to use the 852 country code from Singapore?

Yes, you can use Circles.Life plans or VOIP apps to access the 852 country code from Singapore at a lower cost than traditional phone providers.

Final Thoughts

Calling Hong Kong from Singapore doesn’t have to be complicated—or expensive. Once you understand the structure of the 852 country code, use the correct number format, and choose the right mobile or SIM plan, you can stay connected without the stress. Whether you're making business calls, keeping up with family, or planning your next trip, this guide has you covered.

Ready to explore more international codes or switch to a better calling plan? Check out Circles.Life’s IDD Calling Codes Guide and start dialing smarter today.