The Bangladesh country code is +880. This code is required when dialing a Bangladeshi number from outside the country. It precedes the national significant number, which consists of the area code and subscriber number.

To dial a mobile number in Bangladesh from a landline, first dial the national prefix '0', followed by the 10-digit mobile number. For example, dial 01712345678. Remember to drop the +880 country code for domestic calls.

Bangladesh phone numbers, when formatted with the country code, begin with +880 followed by a 9-10 digit number. Mobile numbers follow the format +880 1XNN-NNNNNN, while fixed-line numbers are +880 XNN-NNNNNN. Always include the '+' for international compatibility.

The national prefix for dialing within Bangladesh is '0'. This prefix is used for calls between landlines, landline to mobile, and mobile to mobile within the country. It precedes the area code for fixed lines or the mobile prefix.

To call Bangladesh from another country, dial the international access code (e.g., 00 or 011), followed by the Bangladesh country code (+880), and then the subscriber's number. Remember to include the area code if applicable.

Mobile numbers in Bangladesh follow the format +880 1XNN-NNNNNN, where X represents a digit from 3 to 9, and N represents any digit. The first '1' after the country code indicates a mobile number, followed by a two-digit operator code and a six-digit subscriber number.

Bangladesh's closed numbering plan means all phone numbers have a fixed length, excluding the country code. This simplifies number allocation and routing. It ensures consistent number formats and allows for efficient use of numbering resources.

Use regular expressions, such as ^\+8801[3-9]\d{8}$ for mobile numbers, for validation and formatting. They help ensure accurate data entry and prevent errors in applications and databases. This is crucial for systems dealing with Bangladeshi phone numbers.

Mobile number portability (MNP), introduced in 2018, allows subscribers to change operators while keeping their existing phone number. This fosters competition among telecom providers and provides greater flexibility for users regulated by the Bangladesh Telecommunication Regulatory Commission (BTRC).

The article focuses on mobile number portability (MNP) introduced in 2018 and regulated by the BTRC. It does not mention fixed-line number portability, suggesting it might not be available or as readily accessible as MNP.

The Bangladesh Telecommunication Regulatory Commission (BTRC) oversees the telecommunications industry. They manage the numbering plan, allocate phone numbers, and ensure fair distribution to meet demand. They also regulate services and ensure compliance.

Golden numbers are easy-to-remember phone numbers with special sequences or repeating digits. These numbers are often considered premium and are available for purchase at a higher price than regular numbers through telecom operators in Bangladesh.

Bangladesh toll-free numbers can be validated using the regular expression ^\+880800\d{7}$. This regex ensures the number starts with +880800, followed by seven digits. This allows developers to validate user input and ensure accuracy.