Area Code 2521 – Abidjan-sud

Overview of Area Code 2521 (Abidjan-sud)

Area code 2521 is a geographic National Destination Code (NDC) assigned to the Abidjan-sud zone within Côte d’Ivoire’s national numbering plan. This code serves the southern districts of Abidjan, the country’s economic capital, including the communes of Plateau, Treichville, Koumassi, Marcory, and Port-Bouët. As a geographic prefix, 2521 identifies a fixed-line subscriber’s physical location for routing purposes, in accordance with ITU-T E.164 recommendations.

Dialing Formats

For callers within Côte d’Ivoire, the national trunk prefix 0 is used before the NDC and subscriber number. The full national format is: 0 25 21 XX XX XX (8 digits after the trunk prefix). For example, a local call to a subscriber in Abidjan-sud would be dialed as 025 21 12 34 56.

For international callers, the country code +225 replaces the trunk prefix, and the leading 0 is omitted. The international format is: +225 25 21 XX XX XX. Thus, the same number would be dialed as +225 25 21 12 34 56 from abroad.

Geographic Coverage and Administrative Context

Abidjan-sud is one of the two geographic zones covering the Abidjan metropolitan area, the other being Abidjan-nord (prefix 2520). The southern zone encompasses the central business district and major port facilities, making it a hub for commercial and governmental activity. Fixed-line numbers under 2521 are typically allocated to businesses and residences within this area, and they are managed by Côte d’Ivoire’s regulatory authority, the Autorité de Régulation des Télécommunications de Côte d’Ivoire (ARTCI).

Caller Instructions

• Local callers (within Côte d’Ivoire): Dial the trunk prefix 0, then the NDC and subscriber number: 0 25 21 XX XX XX.
• International callers: Dial your country’s international access code (e.g., 00 or +), then 225, followed by the NDC without the leading zero and the subscriber number: +225 25 21 XX XX XX.

No overlay codes are currently in effect for this area, so the 2521 prefix uniquely identifies the Abidjan-sud geographic region. However, number portability may allow subscribers to retain their 2521 numbers when moving to other operators, though the geographic association remains for administrative purposes.