Updated · Written by Harry Cheng, founder of china-mobile-phones.com (est. 2003).

Quick answer: The Hong Kong country code is +852. To call Hong Kong, dial your country’s exit code (or +), then 852, then the eight-digit number. Hong Kong has no area codes. To call out of Hong Kong, dial 001 or + followed by the country code.
The Hong Kong country code is also called the Hong Kong calling code, dialing code, phone code or international dialing code. They all mean +852.
Dial your country’s exit code, then 852, then the eight-digit number. On a mobile phone you can press + instead of the exit code.
| Calling from | Dial |
|---|---|
| United States or Canada | 011 852 XXXX XXXX |
| United Kingdom | 00 852 XXXX XXXX |
| Australia | 0011 852 XXXX XXXX |
| Mainland China | 00 852 XXXX XXXX |
| Singapore | 001 852 XXXX XXXX |
| Any mobile phone | +852 XXXX XXXX |
Dial 011, then 852, then the eight-digit number: 011 852 XXXX XXXX. From a US mobile phone you can use +852 instead of 011 852. There is no area code and no leading zero.
Hong Kong numbers have eight digits and no area code. The first digit tells you the type of line: landlines start with 2 or 3, and mobiles start with 4, 5, 6, 7, 8 or 9. Mobile numbers beginning 4, 7 and 8 were added later, alongside the older 5, 6 and 9 ranges. Mainland China uses a different code, +86, and Hong Kong calls to the mainland and Macau count as international calls.
| Type | Starts with | International format |
|---|---|---|
| Landline | 2 or 3 | +852 2XXX XXXX or +852 3XXX XXXX |
| Mobile | 4, 5, 6, 7, 8 or 9 | +852 9XXX XXXX (example) |
Example format (illustrative only, not a working number): +852 9123 4567.
Hong Kong has no area codes, so nothing goes between +852 and the eight-digit number. Don’t confuse it with its neighbours: Macau and mainland China have their own country codes.
| Place | Country code |
|---|---|
| Hong Kong | +852 |
| Macau | +853 |
| Mainland China | +86 |
From a Hong Kong phone, dial 001 or press + on a mobile, then the country code and number. The 001 prefix works on all lines. Calls to mainland China (+86) and Macau (+853) are international, so include the country code. For mainland numbers, the leading 0 of the area code is dropped when you call from outside the mainland; see the China area code guide and the China phone code page. Carriers can offer their own discount prefixes and rates, so check your plan. Calls over an app such as WhatsApp use data instead of per-minute charges. For CMHK voicemail and call forwarding codes, see the CMHK voicemail and call forwarding guide.
A Hong Kong virtual mobile number receives calls and SMS without a SIM card, and you can upgrade it to a Hong Kong SIM or eSIM later. It suits Hong Kong app sign-ups and verification codes.
See the Hong Kong number serviceGoing to Hong Kong and need data? See the Hong Kong SIM card and eSIM options. Need a number that works in China and Hong Kong? See the China and Hong Kong SIM card with a phone number.
The Hong Kong country code is +852. Dial it after your country’s international exit code, or use the + sign on a mobile phone, then the eight-digit number.
Hong Kong’s IDD exit prefix is 001, which works on all lines, and its country code is +852. To call Hong Kong from abroad, use your own country’s exit code, then 852.
No. Hong Kong has had no area codes since the end of 1989, so you dial +852 and then the eight-digit number. Hong Kong’s code is separate from mainland China’s +86.
Dial 011, then 852, then the eight-digit number, for example 011 852 XXXX XXXX. From a mobile phone you can use +852 instead of 011 852.
From the UK or mainland China, dial 00 852 and the eight-digit number. From Australia, dial 0011 852. From a mobile phone, +852 works from any of them.
Hong Kong numbers have eight digits and are written +852 XXXX XXXX. There is no area code and no leading zero to drop.
Fixed-line numbers start with 2 or 3. Mobile numbers now start with 4, 5, 6, 7, 8 or 9, because the government added the 4, 7 and 8 ranges alongside the older 5, 6 and 9.
Dial 001, or press + on a mobile, then the country code and number. The 001 prefix works on all lines in Hong Kong. Calls to mainland China (+86) and Macau (+853) are also international calls.
Use 001 or + followed by the country code and number. Carriers can offer their own discount prefixes and call rates, so check your CMHK plan before you call. See our CMHK international call rates page for IDD 001, IDD 1597 and prepaid rates.
Dial 999 from any phone for police, fire and ambulance. On mobile phones, 112 also works.
Hong Kong operators add a + sign to the caller display on mobile phones for incoming calls from outside Hong Kong, so you can spot suspicious calls from abroad.
香港的国际区号是 +852,电话号码为 8 位,没有区号。从美国拨打香港,请拨 011 852 加 8 位号码;从中国内地拨打,请拨 00 852 加 8 位号码;用手机也可以直接拨 +852。从香港拨打国际电话,请拨 001 或 +,再加国家区号。需要香港手机号码,请看香港手机号码中文购买指南。
How this guide was put together: The country code, number format, mobile prefixes and the 001 prefix come from the sources below. Exit codes for other countries are standard, but check with your carrier if a call doesn’t connect. I haven’t quoted call rates, because they change by carrier.
Sources (checked 25 October 2026): Telephone numbers in Hong Kong (Wikipedia) · Hong Kong Government press release on new mobile number prefixes · OFCA numbering plan dataset (data.gov.hk).