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A telephone prefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit local phone number, the second three digits of the 3-3-4 scheme. In other countries, both the prefix and the number may have different lengths. It shows which exchange the remaining numbers refer to. A full telephone number is usually made up of a country code (required for international calls only), area code (required for calls between telephone areas), prefix, and subscriber number.
Some places restrict certain prefixes to fax numbers or cell phones only; in other places such dedicated prefixes are not used.
As telephone technology advanced, the precise significance of the prefix became blurred in many places; for instance, 485 in London, UK, was once the GULliver exchange, but now 44-20-7485-xxxx is just considered one of many number blocks served by the CLKEN Kentish Town exchange.[1]
^"Number blocks served by the Kentish Town exchange". Archived from the original on 2016-03-04. Retrieved 2013-03-01.
A telephoneprefix is the first set of digits after the country, and area codes of a telephone number. In the North American Numbering Plan countries (country...
This is a list of mobile telephoneprefixes by country. List of country calling codes The original prefix issued to the mobile network operator. Due to...
each telephone subscriber. Many numbering plan administrators subdivide their territory of service into geographic regions designated by a prefix, often...
dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas...
of international dialing prefixes used in various countries for direct dialing of international telephone calls. These prefixes are typically required only...
A trunk prefix is a digit sequence to be dialled before a telephone number to initiate a telephone call for the purpose of selecting an appropriate telecommunications...
with 080 or 090. Telephone numbers in Kenya use a 9-digit format. The nine digits used for local calls start with a "0" (trunk prefix) for domestic calls...
for callers mandate that the full telephone number is always dialed, including the area code, which is called prefix (prefisso in Italian). Since 1998...
local calling area without using an area code or city code prefix. For example, a telephone number in North America consists of a three-digit area code...
Telephone numbers in Asia have the most possible prefixes of any continent on Earth: 2, 3, 6, 7, 8, 9. Below is a list of country calling codes for various...
the prefix 1. However, some of these services have been moved to other area codes. 10xy, 100yy These numbers can be dialled before the telephone number...
in area code 3 and 9 digits elsewhere, including the STD prefix 0. When writing a telephone number with the area code, the area code and subscriber number...
Philippines, the prefix 0 for domestic calls and 00 for international calls are used. Philippine area codes for fixed-line or landline telephones are fixed at...
known as the National Telephone Numbering Plan, which is the system for assigning telephone numbers to subscriber stations. Telephone numbers are of variable...
country code 1, which is dialed as a prefix in the international E.164 telephone numbering plan. The trunk prefix for dialing long-distance calls, across...
Australia a landline telephone in an area other than that of the caller, the telephone number is preceded by the Australian trunk prefix 0 and the area code:...
fixed landline are prefixed by an area code which varies in length depending on the significance of the place. Mobile numbers are prefixed (03) followed by...
call costs. In 2001, telephone numbers in the DOMs changed to the same ten-digit format as metropolitan France, with new prefixes beginning with the digit...
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...
Telephone numbers in Myanmar are 8 to 11 digits long including the trunk prefix. In Yangon, the format is 01 MMM MMMM In Mandalay, the format is 02 MMM...
numerically with a three-digit telephone number prefix, commonly termed the area code. Each telephone is assigned a seven-digit telephone number unique only within...
routing prefix 00 and country code for calls from West Germany to East Germany, and 06 49 from East Germany to West Germany. The East German telephone network...
Lithuania uses an open telephone numbering plan with all phone numbers having nine digits, including the prefix "0", a 1–3 digit area code, and a 5–7 digit...
formally allocated to "Taiwan, China". "The assignment of number prefixes by Fixed-Line telephone operators.(In Chinese language only)" (PDF). National Communications...
international call prefix for the originating country, followed by the country calling code for the destination country, and finally the national telephone number...
Telephone numbers in Switzerland are defined and assigned according to the Swiss telephone numbering plan administered by the Swiss Federal Office of Communications...
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