How does the phone numbering system in [your country] work?

liza89 · Post by **liza89** » Mon May 19, 2025 3:59 am

The phone numbering system in Bangladesh is governed by the Bangladesh Telecommunication Regulatory Commission (BTRC) and follows a closed numbering plan. This means that the length of the phone numbers is fixed, and you must dial the area or operator code even when calling within the same numbering area.

Here's a breakdown of how it works:

Dialing Format:

From within Bangladesh: 0 – Area/Operator Code (X) – Subscriber Number (N)
From abroad: +880 – Area/Operator Code (X) – Subscriber Number (N)
The country code for Bangladesh is +880. The trunk prefix for national long-distance calls is 0.

Components of a Phone Number:

Country Code (+880): This is essential when calling Bangladesh from outside the country.

Area/Operator Code (X): This component identifies algeria phone number data the geographical area for fixed-line numbers or the mobile network operator. The length and value of this code vary:

Fixed Line (PSTN): Area codes are typically two digits (e.g., 02 for Dhaka). Older formats might show variations. New BTCL (Bangladesh Telecommunications Company Limited) numbers in Dhaka follow the format +880-2-N-NNNN-NNNN or the newer +8802XNN-NNNNNN where X is a zone code. Outside Dhaka, the format was often +880-XXX-NNN-NNNN, and new numbers might be +880-XXX-NNNNNN.
Mobile Network Operators: Each mobile operator has a specific two-digit code following the 01 prefix:
013 and 017: Grameenphone
014 and 019: Banglalink
015: Teletalk
016 and 018: Robi (Airtel primarily uses 016)
011: Citycell (ceased operations in 2016, but numbers might still exist or be in transition)
IP Telephony Service Providers (IPTSP): These numbers often start with 096 followed by a specific provider code and the subscriber number (e.g., +880-96XX-NNNNNN).
Subscriber Number (N): This is the unique number assigned to each individual telephone or mobile connection following the area/operator code.

For mobile numbers, the subscriber number is typically eight digits long, following the 01X operator code.
For fixed-line numbers, the length can vary, often six to eight digits. New BTCL numbers in Dhaka are typically eight digits after the 02X prefix.
Examples:

Calling a Grameenphone mobile number within Bangladesh: 017XXXXXXXX
Calling a Grameenphone mobile number from abroad: +880 17XXXXXXXX
Calling a BTCL landline number in Dhaka within Bangladesh: 02XXXXXXXX (older format might have a middle digit) or the newer format depending on the zone code.
Calling a BTCL landline number in Dhaka from abroad: +880 2 XXXXXXXX (omitting the leading 0 of the area code).
Calling an IP Telephony number from within Bangladesh: 096XXNNNNNN
Calling an IP Telephony number from abroad: +880 96XXNNNNNN
Important Points:

Mobile Number Portability (MNP): Introduced in 2018, subscribers can switch operators without changing their phone number.
Trunk Prefix: The 0 prefix is crucial for dialing within Bangladesh for calls going outside the local area code or to mobile numbers.
International Access Codes: To dial internationally from Bangladesh, you typically use 001 or 002 followed by the destination country code and phone number.
Emergency Numbers: The nationwide emergency number in Bangladesh is 999.
The numbering plan is designed to accommodate the growing number of subscribers and different types of telecommunication services. The BTRC periodically updates the numbering plan to ensure efficient allocation and routing of phone numbers.