Tismi BV (commonly known as Tismi BV) is a mobile network operator in Switzerland assigned PLMN code 228-70 by the national telecommunications authority.

The MCC 228 identifies Switzerland, while MNC 70 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 Switzerland operators .