|Country calling code||+354|
|International call prefix||00|
Telephone numbers in Iceland are seven digits long and generally written in the form xxx xxxx or xxx-xxxx and the E.123 format specifies +354 xxx xxxx from abroad since the country code is +354.
There are no area codes in this closed numbering plan and the international call prefix is 00. Numbers of mobile phones tend to begin with either 6xx xxxx, 7xx xxxx or 8xx xxxx, while land line numbers start with 5xx xxxx (in Reykjavík) or 4xx xxxx (the countryside). Numbers starting with 3 are nine digits long, 3xx xxx xxx.
Land line numbers in and around the capital area generally begin 5xx xxxx.
Land line numbers elsewhere in the country tend to begin 4xx xxxx.
In most places the numbers generally begin with the same three digits, e.g.
This is a list of dialing codes in Greece. The first digit represents the type of service. 1 is used for short codes, 2 for geographical numbers, 5 is used for inter-network routing purposes and VPNs, 6 for mobile services, 7 is reserved for universal access numbers, 8 for reduced-fee services, 9 is used for premium rate services. All dialable numbers are ten digits, except for short codes, 807-XXXX used for calling card access codes, and numbers in the 5 range, used for routing purposes and not dialable by end-subscribers.
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of administrative regions of the public switched telephone network (PSTN) and they are also present in private telephone networks. For public number systems, geographic location plays a role in the sequence of numbers assigned to each telephone subscriber.
Telephone numbers in the United Kingdom are administered by the UK government's Office of Communications (Ofcom). For this purpose Ofcom established a telephone numbering plan, known as the National Telephone Numbering Plan, which is the system for assigning telephone numbers to subscriber stations.
The Australian telephone numbering plan describes the allocation of phone numbers in Australia. It has changed many times, the most recent major reorganisation by the Australian Communications and Media Authority taking place between 1994 and 1998.
The French telephone numbering plan is not only used for metropolitan France but also for the French overseas departments and some overseas collectivities.
Telephone numbers in China are organized according to the Chinese Telephone Code Plan. The numerical formats of landlines and mobile phones are different: landlines have area-codes, whereas mobile phones do not. In major cities, landline-numbers consist of a two-digit area code followed by an eight-digit inner-number. In other places, landline-numbers consist of a three-digit area code followed by a seven- or eight-digit inner-number. The numbers of mobile phones consist of eleven digits.
Telephone numbers in Hong Kong are mostly eight-digit. Fixed land line numbers start with 2 or 3, mobile (cellular) 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.
Numbers on the Irish telephone numbering plan are regulated and assigned to operators by ComReg.
Telephone numbers in Singapore, also known as the National Numbering Plan, are regulated by the Info-communications Media Development Authority (IMDA). Due to the small geographical size of Singapore, there are no area or trunk codes; all numbers belong to one numbering area, and thus come in the same 8-digit format. Numbers are categorised based on the first digit, thus providing ten possible categories, of which six are currently in use and the remaining four reserved for future usage.
The dialling plan for mobile networks and new landline operators is closed; all subscriber numbers must be dialled in full. For landline numbers starting with 02, the dialling plan used to be open; the trunk digit and area code could be omitted if the caller was in the same area code as the callee. However, starting May 3, 2008, all landline numbers must be dialled in full.
Telephone numbers in Malaysia are regulated by the Malaysian Communications and Multimedia Commission (MCMC).
Telephone numbers in Luxembourg employ a closed dialling system, whereby all numbers are dialed in the same format whether from within Luxembourg or from abroad. There is no trunk like "0".
The regulation of telephone numbers in Germany is the responsibility of the Federal Network Agency of the German government. The agency has a mandate to telecommunications in Germany and other infrastructure systems.
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 dialing plan, meaning that the full national number must be dialed for all calls, but it retains the trunk code, '0', for all national dialling.
The national conventions for writing telephone numbers vary by country. While international standards exist in the form of the International Telecommunication Union sector ITU-T issued recommendation E.123, national telephone numbering plans define the format and length of telephone numbers assigned to telephones.
There were changes to the telephone numbering plan in Georgia which were expected to be completed by the end of 2011. This article is being updated after all the major changes, also the dates of these changes are indicated.
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