Telekom Srbija a.d. (commonly known as mt:s) is a mobile network operator in Serbia assigned PLMN code 220-03 by the national telecommunications authority.

The MCC 220 identifies Serbia, while MNC 03 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 Serbia operators .