|Country calling code||+30|
|International call prefix||00|
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 (3 and 4 are reserved for that purpose too), 5 is used for inter-network routing purposes (non-dialable codes) and VPNs, 6 for mobile services, 7 is reserved for universal access numbers (not active), 8 for reduced-fee services (like 800 toll-free, 801 local call, 89 dial-up and data services), 9 is used for premium rate services (901 for general purpose and 909 for adult-only services). All dialable numbers are ten digits, except for short codes (3–5 digits in the 1 range), 807-XXXX (seven digits) used for calling card access codes, and numbers in the 5 range, used for routing purposes and not dialable by end-subscribers.
Geographical area codes start with the digit 2. There are currently two-, three-, and four-digit area codes. The only two-digit area code is 21 for the Athens Metropolitan area; three-digit codes are used for the cities Thessaloniki, Patras, Larissa, Heraklion, Kavala, and Tripoli. The rest of the codes are four-digit codes.
Generally speaking, the second digit of a geographical area code signifies a broader geographical area of Greece, That is how area codes are sorted in this article.
Two-digit codes are used with eight-digit subscriber numbers, three-digit codes with seven-digit numbers, and four-digit codes with six-digit numbers so the full telephone number is always ten digits.
Subscriber numbers in most areas start with 0. That is the digit that was inserted between the area code and the subscriber number to form the new ten-digit numbering plan back in 2002. Thus, many Greeks erroneously think that the area codes include this leading 0. For example, they think that Athens's area code is 210 while, actually, Athens's area code is 21, 0 being the first digit of the subscriber number.
Subscriber numbers starting with 0 are assigned to the former monopoly OTE. In bigger cities like Athens and Thessaloniki, subscriber numbers starting with other digits except 0 are becoming more and more common, especially amongst business subscribers. In this case many people think that the area code is different. For example, a subscriber number in Athens might start with 211, with people thinking that 211 is a distinct area code from 210 while, in reality, both numbers are in the 21 area code and the third digit of the number belongs to the subscriber number.
The international call prefix depends on the country from which you are calling, for example, 00 for most European countries and 011 from North America.
In 2001-2002, Greece moved to a closed ten-digit numbering scheme in two stages, with the result that subscribers' numbers changed twice. For example, before the change, a number in Athens would have been dialed as follows:
|xxx xxxx||(Athens numbers called within Athens)|
|(01) xxx xxxx||(Athens numbers called from within Greece)|
|+30 1 xxx xxxx||(Athens numbers called from outside Greece)|
In 2001, a '0' was added after the area code, which was incorporated into the subscriber's number:
|01 0xxx xxxx||(Athens numbers called from within Greece)|
|+30 1 0xxx xxxx||(Athens numbers called from outside Greece)|
Finally, in 2002, the leading '0' was changed to a '2' (for geographic numbers) :
|21 x xxx xxxx||(Athens numbers called from within Greece)|
|+30 21 x xxx xxxx||(Athens numbers called from outside Greece)|
For mobile phone numbers, the leading '0' was changed to a '6'.
Note that because of number portability, for both geographical and non-geographical (mobile, toll-free, premium rate) numbers, one cannot be sure about the operator that a number belongs to. All geographical codes (21x, 231x) end in a number from 0 to 6 (210 or 212 for Athens, 2310 or 2312 for Thessaloniki). Numbers whose code ends in "0" are or were originally operated by OTE. The same applies to mobile phones: All mobile codes (69x) end in 0,3,4,5,7,8 or 9 (690, 698). Mobile code "696" is assigned to OTE pagers. Numbers starting with 690 and 693 were originally assigned to WIND, with 694 and 695 to Vodafone, with 697 and 698 to Cosmote and with 699 to Q-Telecom until 2007 when it merged with WIND.
236x is not used.
245x, 247x and 248x are not used.
256x through 258x are not used.
271: Tripoli (and area)
277x and 278x are not used.
285x through 288x are not used.
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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 Japan consist of an area code, an exchange number, and a subscriber number.
In Argentina, area codes are two, three, or four digits long. Local customer numbers are six to eight figures long. The total number of digits is ten, for example, phone number (11) 1234-5678 for Buenos Aires is made up of a 2-digit area code number and an 8-digit subscriber's number, while (383) 123-4567 would be an example of a Catamarca number.
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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).
The format of telephone numbers in Australia has changed over time to allow for the expansion of the subscriber base as technology has improved.
PhONEday was a change to the telephone dialling plan in the United Kingdom on 16 April 1995. It changed geographic area codes and some telephone numbers. In most areas, a "1" was added to the dialling code after the initial zero. In Bristol, Leeds, Leicester, Nottingham and Sheffield, the area codes were replaced with new codes and the subscriber numbers gained an extra digit. The PhONEday changes also made provision for new ranges of subscriber numbers in those five cities. A £16m advertising campaign, and an eight-month period of parallel running during which old and new codes were active, preceded the change. PhONEday followed a change made in May 1990, when the old London area code 01 had been released from use, permitting all United Kingdom geographic numbers to begin with this prefix. Originally planned in 1991 to take place in 1994, in 1992 the change was postponed until 1995.
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