Hong Kong Phone Number Format 2027: +852 & Getting a Local Number

Hong Kong phone numbers have 8 digits and no area codes, and the country code is +852. Fixed-line numbers start with 2 or 3, and mobile numbers start with 4, 5, 6, 7, 8 or 9, according to the Office of the Communications Authority (OFCA). To call Hong Kong from abroad, dial your international exit code, then 852, then the 8-digit number, for example +852 2345 6789. Every SIM card in Hong Kong, prepaid or contract, must be registered under the real-name registration programme before it works, using your HKID card or a passport.

This guide covers number formats, how to dial in and out of Hong Kong, how to get a local number when you arrive, real-name SIM registration rules, and the emergency and help numbers worth saving.

What Is the Hong Kong Phone Number Format?

Every Hong Kong number is 8 digits long. There are no area codes, so the same 8 digits work from anywhere in Hong Kong.

People usually write numbers in two groups of four: 2345 6789. From overseas, you add the country code: +852 2345 6789.

Source: OFCA information leaflet on IP telephony service; OFCA numbering plan; OFCA press release, February 2018.

OFCA's leaflet lists mobile ranges starting 51 to 57, 59, 6, 84 to 87, 89 and 9. In February 2018, OFCA announced that numbers starting with 4, 7 and 8 would also be opened for mobile services, adding about 10.6 million new numbers. So if you see a new number starting with 4 or 7, it's almost certainly a mobile.

If you're moving to Hong Kong for a job, check out ExpatJobBoard.com. We list thousands of English-speaking jobs that don't require Cantonese or Mandarin.

What Does +852 Mean?

852 is Hong Kong's international country code. The "+" stands for whatever exit code you need to dial from your country to make an international call. On a mobile, you can type "+" directly.

Macau uses +853 and mainland China uses +86, so an +852 number is always a Hong Kong number.

How to Call Hong Kong From Abroad

Dial your country's international exit code, then 852, then the 8-digit number. On a mobile, using "+" works from anywhere.

There's no leading zero to drop, because Hong Kong numbers don't have one.

How to Call Abroad From Hong Kong

From Hong Kong, dial "+" or 001, then the country code, area code and number. SmarTone notes that "+" is charged the same as its 001 IDD service. Other carriers have their own IDD prefixes, sometimes cheaper, so check your plan.

For example, to call a London number from Hong Kong: +44 20 xxxx xxxx, or 001 44 20 xxxx xxxx.

How to Get a Hong Kong Phone Number

You have two options when you arrive.

Prepaid SIM. Sold at the airport, convenience stores and carrier shops. Good for your first weeks, before you have an HKID card or a local bank account.

Monthly SIM service plan. Better value once you're settled. You'll usually need proof of identity and address, and carriers may ask for a local bank account or credit card.

Our first 30 days checklist covers when to get your SIM, Octopus card and bank account, and our guide to opening a bank account in Hong Kong explains why many banks want a local mobile number before they'll open your account.

Real-Name SIM Registration: What You Need to Know

All SIM cards in Hong Kong must be registered to a real person before they can be used. The programme was fully implemented on 24 February 2023, according to OFCA, and unregistered prepaid SIMs stopped working after 23 February 2023.

The key rules from OFCA's guidance:

• Every SIM must be registered before activation, whether it's a prepaid card or a monthly plan. Registration is free.
• Hong Kong residents must use their original HKID card. People without one can use a valid passport or travel document. HKSAR and BN(O) passports aren't accepted for this.
• You can register up to 10 prepaid SIMs per provider. There's no limit on monthly SIM service plans.
• Registration through iAM Smart is instant for HKID holders.
• Verification messages come from "#SIMREG". Ignore any other sender claiming to verify your SIM.

OFCA's real-name registration FAQ has the full rules.

Proposed Changes

In August 2025, OFCA put forward a proposal to cut the prepaid limit from 10 to 3 SIMs per provider and create new offences for selling or using SIMs registered to someone else. Legislation was planned for 2026. As of November 2026 this was a proposal, so check OFCA's latest guidance if you plan to hold several prepaid SIMs.

Emergency and Useful Numbers in Hong Kong

Save these in your phone on day one.

Source: Home Affairs Department; OFCA; HK Engage; Digital Policy Office.

OFCA notes that if your phone can't connect to your own network, try 112. Calling 00852 999 or 00852 112 doesn't work when you're roaming on a mainland network, so in the mainland use the local emergency numbers.

Scam Calls: What the "+852" Warning Means

Hong Kong has a serious problem with phone scams, and the telecoms industry has added safeguards. According to OFCA:

• A "+" shown before a caller's number means the call is coming from outside Hong Kong. A real local bank or government office won't usually call you this way.
• Suspicious calls from outside Hong Kong that spoof a "+852" number are blocked, and other suspicious calls trigger a voice or text warning before they connect.
• SMS from a Registered Sender show a "#" at the start of the sender name, for example messages from banks or government departments.

If a caller claims to be from the police, the Immigration Department or your bank and asks for money or passwords, hang up and call the official number yourself.

Hong Kong Phone Etiquette for Newcomers

• WhatsApp is the default for work and personal messaging, including with landlords, agents and recruiters.
• Put your Hong Kong number on your CV with +852 once you have one. Recruiters prefer a local number. Our Hong Kong resume sample shows the usual format.
• People answer the phone with "wái" (喂). Don't be thrown by it. Our guide to what language is spoken in Hong Kong has a few more useful phrases.

FAQs: Hong Kong Phone Numbers

How many digits is a Hong Kong phone number?

Eight. There are no area codes, so all local numbers are 8 digits.

What is the country code for Hong Kong?

+852. Dial it before the 8-digit number when calling from abroad.

How can I tell if a Hong Kong number is a mobile or a landline?

Landlines start with 2 or 3. Mobiles start with 4, 5, 6, 7, 8 or 9 in most ranges, according to OFCA.

Does Hong Kong have area codes?

No. The same 8-digit number works anywhere in Hong Kong.

How do I call Hong Kong from the US?

Dial 011 852, then the 8-digit number. From a mobile, use +852 and the number.

How do I call Hong Kong from the UK?

Dial 00 852, then the 8-digit number, or +852 from a mobile.

Do I need to register a SIM card in Hong Kong?

Yes. Every SIM must be registered with your real identity before activation. Non-residents can use a passport.

How many prepaid SIM cards can I have in Hong Kong?

Up to 10 per provider under current OFCA rules. A proposal to cut this to 3 was published in 2025.

What is the emergency number in Hong Kong?

999 from any phone, and 112 from mobiles. Both are free.

What does a "+" before a caller's number mean in Hong Kong?

It means the call is coming from outside Hong Kong. Be cautious if the caller claims to be a local bank or government office.

Key Takeaways

• Hong Kong numbers have 8 digits and no area codes; the country code is +852.
• Landlines start with 2 or 3; mobiles start with 4, 5, 6, 7, 8 or 9 in most ranges.
• Call Hong Kong from abroad with your exit code, then 852, then the number.
• All SIM cards must be registered under real-name registration, fully in force since 24 February 2023.
• You can register up to 10 prepaid SIMs per provider; a cut to 3 has been proposed.
• Emergency numbers are 999 and 112; 1823 is the 24-hour government hotline.
• A "+" before a caller's number means the call comes from outside Hong Kong.

Got Your Hong Kong Number? Start Applying

A local number makes you easier to reach for recruiters and interviews. Browse English-speaking jobs in Hong Kong on ExpatJobBoard.com and put your new +852 number on your applications.