International Access Codes are also used to select the operator. All are starting with 00 while the third number is identifying the operators gateway. Currently there are 3 active codes:
All other combinations are reserved for this purpose only. [1]
To dial a land line in Cambodia all over the country, the format is Area Code + Phone Number. The area code is 3 digits long, followed by a 6 or 7 digit phone number.
Calls made from outside Cambodia must omit the prefix 0. Therefore, to call a land line number in Phnom Penh from other countries, dialing begins with +855 23 followed by 6 or 7 digits. [2]
[3] Area codes starting with 02
Area codes starting with 03
Area codes starting with 04
Area codes starting with 05
Area codes starting with 06
Area codes starting with 07
Likewise to call mobile phones from land line or other mobile phones, domestic dialing begins a 0 followed by 8 or 9 digits. [3]
Mobile numbers in Cambodia take the form: 0TT-AXX-XXXY.
The first two numbers after the leading 0 or 'TT' in the example above identify the operator. For example, 010 234 567 is an example of a 9 digit mobile number from Smart. 088 234 5678 on the other hand is an example of a 10 digit mobile number from Metfone.
The 3rd digit after the leading 0 or 'A' in the example above must be between 1 and 9. [4] Normally this value is between 2 and 9 which allows a value of '1' to be used for mobile phones which are roaming in Cambodia. However some operators such as Mobitel are using a '1' in this range to extend their number ranges for certain popular prefixes. For example, 012 123 4567 and 092 123 456 are valid mobile numbers in Cambodia.
'X' can take the values 0 to 9 and 'Y' is an optional extra digit which is used by some operators.
Most mobile numbers are 8 digits long (excluding the leading 0), however some operators are now using 9 digit numbers. 0882345678 is an example of a valid 9 digit mobile number.+85592662075
Calls made from outside Cambodia must omit the prefix 0. Therefore, to call a mobile number in Cambodia from other countries, dialing begins with +855 1, +855 8, or +855 92662075/9 etc.
 | This section's factual accuracy may be compromised due to out-of-date information. The reason given is: Section is inconsistent with the most recent official data published at asset |
| Network | Mobile Prefixes | Mobile Examples | Landline Prefixes | Landline Examples | Notes |
|---|---|---|---|---|---|
Cellcard |
|
| - | - |
|
CooTel |
|
|
| - | |
EMAXX (Star Digital)/Kingtel |
|
| - | - | - |
Seatel |
|
| - | - |
|
Metfone |
|
|
|
| |
qb |
|
| - | - | - |
Smart |
|
|
|
|
A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country.
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 the administrative regions of the public switched telephone network (PSTN) and in private telephone networks.
The French telephone numbering plan is used in Metropolitan France, French overseas departments and some overseas collectivities.
In Argentina, area codes are two, three, or four digits long. Local customer numbers are six to eight digits 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.
Numbers on the Irish telephone numbering plan are regulated and assigned to operators by ComReg.
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.
Regulation of the telephone numbers in Serbia is under the responsibility of the Regulatory Agency of Electronic Communication and Mail Services (RATEL), independent regulatory authority. The country calling code of Serbia is +381. The country has an open telephone numbering plan, with most numbers consisting of a 2- or 3-digit calling code and a 6-7 digits of customer number.
The Brazilian telephone numbering plan uses a two-digit area code plus eight-digit local phone numbers for landlines and nine digits for mobile lines. Public utility services use short phone numbers, always starting with 1.
The New Zealand telephone numbering plan describes the allocation of telephone numbers in New Zealand and the Pitcairn Islands.
Telephone numbers in Malaysia are regulated by the Malaysian Communications and Multimedia Commission (MCMC).
Telephone numbers in Italy are managed by the Autorità per le Garanzie nelle Comunicazioni (AGCOM), a national regulatory authority for the communication industry located in Rome.
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.
Telephone numbers in Pakistan are ten digits long. Landline numbers and mobile numbers have different structures. Geographically 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 a two-digit code indicating the telephone operator. The international country code for Pakistan is +92.
Thailand's telephone numbering plan in Thailand is managed by the National Broadcasting and Telecommunications Commission (NBTC) in accordance with International Telecommunication Union's (ITU) recommendation E.164.
Slovenia received a new country code following the breakup of the Socialist Federal Republic of Yugoslavia in 1991. Additionally, the Ipko mobile phone company in Kosovo used the +386 country code.
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 full number dialing plan, meaning that the full national number must be dialed for all calls, while it retains the trunk code, '0', for all national dialling.
National conventions for writing telephone numbers vary by country. The International Telecommunication Union (ITU) publishes a recommendation entitled Notation for national and international telephone numbers, e-mail addresses and Web addresses. Recommendation E.123 specifies the format of telephone numbers assigned to telephones and similar communication endpoints in national telephone numbering plans.
A telephone number is a sequence of digits assigned to a landline telephone subscriber station connected to a telephone line or to a wireless electronic telephony device, such as a radio telephone or a mobile telephone, or to other devices for data transmission via the public switched telephone network (PSTN), or other public and private networks. Modern smart phones have added a built-in layer of abstraction whereby individuals or businesses are saved into a contacts application and the numbers no longer have to be written down or memorized.
Telephone numbers in Georgia consist of 9 digits and follow a closed numbering plan in which the initial 2 or 3 digits indicate the service or area code and the remaining 6 or 7 digits identify the subscriber.
