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Telephone numbers in Belgium

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Country code: +32
International call prefix: 00
Trunk prefix: 0

A telephone number in Belgium is a sequence of nine or ten digits dialed on a telephone to make a call on the Belgian telephone network. Belgium is under a closed telephone numbering plan, but retains the trunk code, '0', for all national dialling.

Overview and structure

Area codes in Belgium are, excluding the leading '0', one or two digits long. Numbers are of variable length; landlines have a seven-digit subscriber number and a one-digit area code, while smaller cities have a six-digit subscriber number and a two-digit area code. All Belgian telephone numbers dialed within Belgium must use the leading '0' trunk code. Area codes are separated from the subscriber number by a slash and a space, and subscriber number digits are in the format xxx xx xx or xx xx xx (sometimes xxx xxx), depending on the length of the area code. See the table below for examples:

Belgium
  0x xxx xx xx - dialing a bigger city, such as Brussels, Antwerp, or Liège
 0xx  xx xx xx - dialing a smaller city, such as Ypres or Mons
04xx  xx xx xx - dialing a mobile number from a land line or another mobile phone.

From outside Belgium, a caller would dial their international call prefix (typically 00 in Europe and 011 in North America), followed by 32 (the country code for Belgium), then the area code minus the trunk code '0', and finally the local number.

Dialing from New York to Brussels
011-32-2-555-12-12 - Omitting the leading "0".
Dialing from New York to Charleroi
011-32-71-123-456 - The subscriber number shortens with the addition of a number to the area code.
Dialing from New York to a mobile number
011-32-4xx-12-34-56 - The dialer omits the leading "0".

Mobile/GSM area codes always begin with 04xx and the subscriber number is six digits long. Numbers are usually provided by Mobistar, Base, or Proximus. Each provider has a unique number assigned as the second digit in the area code: Proximus numbers begin with 047x, Base numbers with 048x and Mobistar numbers with 049x. With the introduction of number portability, area codes may no longer correspond with their providers.

Area codes