libphonenumber API

Hong Kong Phone Number Format

Country code +852 · ISO HK

How to format, dial, and validate Hong Kong phone numbers, with live examples.

Country Code

+852

National Prefix

International Prefix

Mobile Portability

Yes

Try it now

Pre-filled with a valid fixed line number for Hong Kong. Edit it and click "Try It" to see the parsed result.

Number Types & Example Formats

Each Hong Kong phone-number type supported by libphonenumber, with a real example formatted three ways.

Type Length National International E.164
Fixed Line 8 digits 2123 4567 +852 2123 4567 +85221234567
Mobile 8 digits 5123 4567 +852 5123 4567 +85251234567
Pager 8 digits 7112 3456 +852 7112 3456 +85271123456
Personal Number 8 digits 8112 3456 +852 8112 3456 +85281123456
Premium Rate 5, 6, 7, 8, or 11 digits 900 12 345 678 +852 900 12 345 678 +85290012345678
Toll Free 9 digits 800 123 456 +852 800 123 456 +852800123456
UAN 8 digits 3016 1234 +852 3016 1234 +85230161234

How to Dial Hong Kong Numbers

From abroad

Dial +852 followed by the national number.

Area Codes

Browse Hong Kong area codes with cities, timezones, and example numbers for each.

View Hong Kong area codes →

Validate a Hong Kong Number with the API

Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.

Request
curl https://libphonenumberapi.com/api/phone-numbers/+85221234567

Frequently Asked Questions

What is the country code for Hong Kong?

The international country code for Hong Kong is +852. Use this prefix when dialing Hong Kong numbers from another country.

How long is a Hong Kong phone number?

Hong Kong phone numbers are typically 8 digits, not including the +852 country code.

How do I dial a Hong Kong phone number from abroad?

From abroad, dial +852 followed by the national number.

How do I validate a Hong Kong phone number programmatically?

Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.