Telephone numbers in Hong Kong


Telephone numbers in Hong Kong are mostly eight-digit. Fixed land line numbers start with 2 or 3, mobile phone numbers with 5, 6, 7 or 9, pager numbers with 7 and forwarding service with 8. Since the end of 1989, there have been no area codes within Hong Kong.
The telephone number for emergency services – Police, Fire Service and Ambulance – is 999 for all telephone lines. These numbers can also be used for mobile and other users:
Some special numbers are three- to five-digit. Some premium rate services, for example for games and adult contents, are 11-digit. Numbers beginning with '1' are usually reserved for carrier/operator services. These services are provided by the individual telephone carrier. In general, these numbers can be used across all carriers:
The international call prefix varies depending on IDD provider, however 001 works on all phone lines and uses the IDD service provided by the same carrier as the telephone line that 001 call is dialed from. During the years of telephone monopoly, the International call prefix was 106 and then 001. Calls to Macau and the Mainland China are international, as are calls to Taiwan. Format to dial from Hong Kong to:
xxxx

Present numbering scheme and format

The present structure and format of telephone numbers in Hong Kong according to the Hong Kong Telecom Service Numbering Scheme, is as follows :

1970s

In the 1970s, area codes were assigned with the following pattern:
There was no standard trunk prefix like '0' – only the area code and phone number were dialed when calling from one area code to another. Thus the Kowloon number xxx-xxx would have been dialed as follows:
In the mid-1980s, 6-digit numbers starting with '0' became 7-digit numbers starting with '71', making way for subsequent change of the New Territories prefix from '12' to '0'.
Fixed-line phone numbers were either six- or seven-digit in the 1980s. Area codes were assigned with the following patterns.
Cellular phone numbers are all eight-digit starting with '9'.

Easy Dialling Day

On 30 December 1989, area codes were abolished. Area codes for six-digit numbers became part of subscriber's numbers. Area codes for seven-digit numbers were simply removed. Some six-digit numbers had the first digit changed to two digits to make a seven-digit number.
In the mid-1990s, a '2' was prefixed to all fixed line numbers which are now eight-digit. A '7' was prefixed to existing pager service numbers.
Before the introduction of portable fixed line numbers, numbers were assigned in a pattern akin to districts. For example, in addition to the existing 3, 5 and 0 prefixes, a 4 prefix was used for Tuen Mun and Yuen Long, 6 for Tai Po and Sha Tin, and 8 for Island East.
Numbers starting with '3' were introduced when '2' for fixed lines started running out. Cell phone numbers remain eight-digit. The number '6' started to be used when numbers started with '9' were running out. In May 2008, cellular phone numbers with '5' as the beginning were also introduced.
Due to numerous phone scams spoofing local telephone numbers, calls started from outside Hong Kong using a local number now show the Hong Kong prefix +852 before the phone numbers in Caller ID.