Hong Kong +852
To call Hong Kong from abroad, dial your exit code (or +), then 852, then the local number. Written in full: +852 5123 4567.
The country calling code for Hong Kong is +852. A number starting +852 or 00852 is a call to or from Hong Kong. From abroad: +852 5123 4567.
To call Hong Kong from abroad, dial your exit code (or +), then 852, then the local number as is. The +852 code identifies the country; the following digits identify the line (landline or mobile).
How to call Hong Kong from abroad
011 852 5123 456700 852 5123 45670011 852 5123 4567+852 5123 45675123 4567 is a real-format Hong Kong mobile number (example from the ITU-T numbering plan): replace it with the number you were given, as is.
Hong Kong area codes
In Hong Kong, landlines usually include an area code after +852 (as is). Mobiles have no area code.
Number format
2123 4567from abroad+852 2123 45675123 4567from abroad+852 5123 4567Landline numbers in Hong Kong have 8 digits after the country code; mobile numbers have 8 digits. There is no national prefix to drop: dial the full local number after +852.
Calling abroad from Hong Kong
To call another country from Hong Kong, dial the exit code 00 (or + on a mobile), then the country code, then the number. From Hong Kong to the United States, for example: 00 1 201 555 0123.
A Hong Kong number in international format is written +852 …. The + stands for the exit prefix (00 in much of the world, 011 in North America).
Cheapest ways to call Hong Kong
With internet on both ends, apps like WhatsApp, Signal or FaceTime call Hong Kong for free. To reach a number without an app, VoIP services are usually cheaper than your operator’s international rate.
Frequently asked questions
What country has the code +852?
Hong Kong has the country calling code +852.
How do I call Hong Kong from the United States?
Dial 011, then 852, then the local number as is — for example 011 5123 4567.
What does +852 mean?
It is the international dialing code for Hong Kong. The + stands for your exit code (00 in much of the world, 011 in North America).
Is +852 mobile or landline?
The +852 code identifies the country, not the line type; Hong Kong landlines and mobiles share it.
A country code covers a whole nation; the full number depends on the city and operator.
Mobile network codes in Hong Kong
Every mobile network is identified by a mobile country code (MCC) and a mobile network code (MNC). They appear on your phone when it roams, in SIM settings and in any network lookup. Hong Kong has 4 network operators with their own infrastructure:
| Network | MCC-MNC | Technologies | Subscribers |
|---|---|---|---|
| CMHKChina Mobile | — | — | 5.00 M |
| cslHong Kong Telecom | 454-00 | 4.76 MDec 2023 | |
| 3Hutchison Telecom | 454-03 | 3G · 4G · 5G | 4.30 MJune 2024 |
| SmarToneSun Hung Kai Properties | 454-06 | 3G · 4G · 5G | 2.65 MDec 2023 |
A struck-through generation has been switched off on that network. MCC-MNC: ITU-T E.212 codes as listed on Wikipedia.
2G and 3G switch-off timeline
- CSL — 2G (D-AMPS) switched off
- 3 — 2G (cdmaOne) switched off
- CSL — 2G (cdmaOne) switched off
- CSL — 3G (CDMA2000) switched off
- 3 — 2G (GSM) switched off
- SmarTone — 2G (GSM) switched off
- CSL — 2G (GSM) switched off
- CMHK — 3G (UMTS) switched off
- CMHK — 2G (GSM) switched off
- Smartone — 3G (UMTS) planned switch-off
Keeping a number when changing network
- Mobile number portability
- since 1999-03-01
- Porting time
- 2 day(s)
- Cost to the customer
- Free
Because numbers can be ported, the prefix of a mobile number only tells you which network first issued it, not the network it uses today.
Received a call from a Hong Kong number? Check it with the phone number lookup: type of line, format and local time.
Source: Wikipedia — lists of mobile network operators, mobile network codes, 2G and 3G phase-out, mobile number portability (CC BY-SA 4.0). Subscriber counts as published by each operator or regulator at the date shown.
Phone rules in Hong Kong
The rules a caller, a visitor or a new resident runs into in Hong Kong, each with its source.
| ID to buy a SIM | Yes. Since 1 March 2022 every SIM card, pre-paid included, must be real-name registered before activation; existing pre-paid cards had to be registered by 23 February 2023. Visitors register online by scanning a passport or other travel document and declaring that they hold no HKID and have used no other document. The limit is 10 pre-paid cards per individual per operator. A government proposal of July 2025 would cut this to 3 per operator and add new offences; the amendments were meant to go to the Legislative Council in 2026. No evidence that they were in force as of September 2026.ofca.gov.hk · web.three.com.hk · hongkongfp.com |
|---|---|
| Monthly contract | For SIM-only plans, China Mobile Hong Kong asks for an identity document, a payment method (Visa/Mastercard credit card or UnionPay) and a valid proof of address. Customers without an HKID may use an original valid travel document (BN(O) not accepted); HKID holders must register with their HKID.1cm.hk.chinamobile.com · ofca.gov.hk |
| Calling apps | None known for the public. The only documented restriction: since October 2024 civil servants may not use WhatsApp Web, WeChat or Google Drive on government work computers; mobile phones are exempt and the general public is not affected.hongkongfp.com |
| Reporting scam calls | Call the police Anti-Deception Coordination Centre's 24-hour Anti-Scam Helpline 18222. Suspicious phone numbers, websites and accounts can be checked with the police 'Scameter' tool (CyberDefender). Do-not-call: OFCA runs three Do-not-call Registers (pre-recorded telephone messages, SMS, fax); a number is registered by calling 1835000 from that number.adcc.gov.hk · cyberdefender.hk · ofca.gov.hk |
| Emergency numbers | 999 for police, fire and ambulance.gov.uk |
Checked on 28 September 2026. Rules on SIM registration and calling apps change often: confirm with the regulator or the operator.