CSU (commonly known as CSU-SA) is a mobile network operator in Senegal assigned PLMN code 608-04 by the national telecommunications authority.

The MCC 608 identifies Senegal, while MNC 04 uniquely identifies this operator within the country. Together they form the PLMN (Public Land Mobile Network) identifier used by mobile devices for network selection, SIM card identification, and international roaming.

This assignment was last reported in ITU Operational Bulletin #1280 (Nov. 15, 2023). Search all MCC/MNC codes or view all Senegal operators .