What is the country code for Cambodia?

The country code for Cambodia is +855.

How are mobile numbers structured in Cambodia?

Mobile numbers in Cambodia are typically 8 to 9 digits long and follow the format `0[1-9]X XXXX XXX` or `0[1-9]X XXXX XXXX`. For example, a mobile number might look like `012 345 6789`.

What are the dialing procedures for international calls to Cambodia?

To make an international call to Cambodia, you should dial the international access code of your country, followed by Cambodia's country code (+855), and then the local number without the leading `0`. For example, to call a Cambodian number `023 123 4567` from abroad, you would dial `+855 23 123 4567`.

Is mobile number portability available in Cambodia?

No, Cambodia currently does not have a mobile number portability (MNP) system, meaning mobile numbers cannot be transferred between different operators.

What are the major telecom operators in Cambodia and their associated number ranges?

The major telecom operators in Cambodia and their associated number ranges are: Cellcard (012, 017, 077, 078), Smart (010, 015, 016, 069), Metfone (097, 088, 031, 081), qb (013, 080), and CooTel (038).

What is the country code for Cambodia?

The country code for Cambodia is +855.

How do I dial an international number from Cambodia?

To dial an international number from Cambodia, use the international access code (e.g., 001), followed by the country code and the subscriber number. For example, to call the USA, dial 001 1 555 123 4567.

How are geographic phone numbers formatted in Cambodia?

Geographic phone numbers in Cambodia are formatted as `0X XXXX XXXX` or `0XX XXXX XXX`. An example is 023 123 4567.

What prefixes are used for toll-free numbers in Cambodia?

Toll-free numbers in Cambodia start with the prefix 1800.

Can I port my mobile number to a different operator in Cambodia?

No, Cambodia currently does not support mobile number portability (MNP), so you cannot transfer numbers between different operators.

What are "golden numbers" in Cambodia?

"Golden numbers" are phone numbers that are easy to remember due to repeating digits or recognizable patterns. These numbers are often reserved or sold at a premium.

Which organization manages phone number allocation in Cambodia?

The Ministry of Posts and Telecommunications of Cambodia (MPTC) is responsible for phone number allocation and management.

What is the national prefix for dialing within Cambodia?

The national prefix for dialing within Cambodia is 0.

How do I validate a Cambodian mobile phone number using regex?

To validate a Cambodian mobile phone number, use the regex pattern: `^0[1-9]\d{7,8}$`.

What number range prefixes are used by Smart operator in Cambodia?

Smart operator in Cambodia uses the number range prefixes 010, 015, 016, and 069.

How are premium rate numbers formatted in Cambodia?

Premium rate numbers in Cambodia are formatted as 1900 XXXX, for example, 1900 5678.

Is there a specific format for storing Cambodian phone numbers in databases?

Yes, Cambodian phone numbers should be stored in the format `0XX XXXX XXX` to ensure consistency and correct formatting.

What should developers consider regarding Cambodian phone numbers?

Developers should consider validation, formatting, internationalization, error handling, and regulatory compliance when handling Cambodian phone numbers.

What is the international dialing prefix for Cambodia?

Cambodia uses international prefixes such as 001, 007, 008, 009, and 014-019 for dialing out internationally.

How can I make a domestic call from a landline to a mobile phone in Cambodia?

To make a domestic call from a landline to a mobile phone in Cambodia, dial the full mobile number, for example, 012 345 6789.

What regex pattern is used to validate toll-free numbers in Cambodia?

The regex pattern to validate toll-free numbers in Cambodia is `^1800\d{4}$`.

Which Cambodian operator uses the prefix 097?

The operator Metfone uses the prefix 097 in Cambodia.

What are the dialing procedures for incoming international calls to Cambodia?

For incoming international calls to Cambodia, dial +855 followed by the local number without the leading 0. For example, +855 23 123 4567.

What is the recommended approach for handling blocked numbers in Cambodia?

Operators in Cambodia may block numbers due to non-payment or misuse, so systems should be prepared to handle blocked numbers under these regulatory guidelines.

How many digits are toll-free numbers in Cambodia?

Toll-free numbers in Cambodia are 8 digits long.

Understanding Phone Numbers in Cambodia

Quick Reference Guide

Country: Cambodia
Country Code: +855
International Prefix: 001, 007, 008, 009, 014-019
National Prefix: 0

Overview of Cambodia's Phone Number System

Cambodia's telephone numbering plan aligns with the ITU-T E.164 standard, ensuring seamless international connectivity. This guide offers a comprehensive overview of Cambodia's numbering plan, detailing formats, dialing procedures, and regulatory insights crucial for telecom professionals, developers, and system administrators.

Detailed Number Formats

General Number Structure

Cambodian phone numbers are organized as follows:

Type	Format	Example
Geographic	`0X XXXX XXXX` or `0XX XXXX XXX`	023 123 4567
Mobile	`0X XXXX XXXX` or `0XX XXXX XXX`	012 345 6789
Toll-Free	`1800 XXXX`	1800 1234
Premium Rate	`1900 XXXX`	1900 5678

Geographic Numbers

Geographic numbers in Cambodia are typically 8 to 9 digits long:

Format: 0[2-4] XXXX XXXX
Example: 023 123 4567

Mobile Numbers

Mobile numbers in Cambodia are usually 8 to 9 digits long:

Format: 0[1-9]X XXXX XXX or 0[1-9]X XXXX XXXX
Example: 012 345 6789

Toll-Free Numbers

Toll-free numbers are 8 digits long and start with 1800:

Format: 1800 XXXX
Example: 1800 1234

Premium Rate Numbers

Premium rate numbers are 8 digits long and start with 1900:

Format: 1900 XXXX
Example: 1900 5678

Validating Phone Numbers with Regular Expressions

Use these regex patterns to validate Cambodian phone numbers:

Geographic Numbers:
```
^0[2-4]\d{7,8}$
```
Mobile Numbers:
```
^0[1-9]\d{7,8}$
```
Toll-Free Numbers:
```
^1800\d{4}$
```
Premium Rate Numbers:
```
^1900\d{4}$
```

Dialing Procedures in Cambodia

Domestic Calls

Landline to Landline: Dial the full number (e.g., 023 123 4567).
Landline to Mobile: Dial the full mobile number (e.g., 012 345 6789).
Mobile to Mobile: Dial the full mobile number (e.g., 012 345 6789).

International Calls

Outgoing: Dial the international access code (e.g., 001), followed by the country code and the subscriber number. Example: 001 1 555 123 4567 for the USA.
Incoming: Dial +855 followed by the local number without the leading 0. Example: +855 23 123 4567.

Number Portability

Currently, Cambodia does not support mobile number portability (MNP), meaning numbers cannot be transferred between different operators.

Major Telecom Operators and Their Number Ranges

Operator	Number Range Prefixes
Cellcard	012, 017, 077, 078
Smart	010, 015, 016, 069
Metfone	097, 088, 031, 081
qb	013, 080
CooTel	038

ITU-T Recommendations

Cambodia complies with the ITU-T E.164 standard, ensuring that phone numbers are globally unique and correctly routed internationally.

Number Allocation and Management

The Ministry of Posts and Telecommunications of Cambodia (MPTC) is responsible for the allocation and management of phone numbers, ensuring compliance with international standards and managing number ranges for telecom operators.

Technical Restrictions and Special Cases

Golden Numbers

"Golden numbers," which are easy to remember, are often reserved or sold at a premium, featuring repeating digits or recognizable patterns.

Number Blocking

Certain numbers may be blocked due to non-payment or misuse, with operators enforcing these restrictions under regulatory guidelines.

Technical Considerations for Developers

When developing applications or systems handling Cambodian phone numbers, consider the following:

Validation: Utilize the provided regex patterns for validation.
Formatting: Store and display numbers in the correct format (0XX XXXX XXX).
Internationalization: Implement logic for both domestic and international dialing formats.
Error Handling: Prepare for issues like number blocking or invalid formats.
Regulatory Compliance: Ensure adherence to MPTC regulations regarding number usage and data privacy.

For the latest telecommunications regulations in Cambodia, visit the official MPTC website.