The country code for Djibouti is +253. This code is required when dialing a Djibouti number from another country. Remember to include the plus sign (+) before the country code.

To call a Djibouti mobile phone from abroad, dial +253 followed by the 8-digit mobile number. The mobile number always begins with 77. For example, +253 77 123456.

All Djibouti phone numbers, both fixed-line and mobile, have 8 digits. This standardized format was implemented as of March 1, 2012, to meet the growing demand for phone numbers.

Djibouti phone numbers should be stored in the international E.164 format, which is +253 followed by the 8-digit number. This format ensures consistency and compatibility with international telecommunication systems.

Fixed-line numbers in Djibouti use the prefix 21. Therefore, a complete fixed-line number will look like +253 21 XXXXXX, where X represents any digit from 0 to 9.

The regular expression ^\+25377\d{6}$ can be used to validate a Djibouti mobile number. This expression checks for the +253 country code, the 77 mobile prefix, and six following digits.

Djibouti transitioned to an 8-digit numbering plan on March 1, 2012. This change, in line with ITU-T standards, helped accommodate the increasing demand for both fixed-line and mobile services.

For calls within Djibouti, dial the full 8-digit number directly, whether calling from landline to landline, landline to mobile, or mobile to mobile. No additional prefixes are required for domestic calls.

The Djibouti Telecommunications Regulatory Authority (ATR) regulates the telecom sector, managing number allocation and ensuring compliance with international standards, like ITU-T Recommendation E.164.

Number portability should be considered when developing any user accounts or telecom services involving Djibouti phone numbers. It allows users to switch providers while keeping their number, increasing competition and consumer choice.

The international dialing prefix from Djibouti is 00. This prefix is dialed before the country code and the local number when making international calls.

Djibouti Telecom is the primary telecom operator in Djibouti, responsible for managing both fixed-line and mobile services. They control number ranges with prefixes 21 for fixed-line and 77 for mobile.