ClearSky Technologies, Inc. is a mobile network operator in the United States of America, serving the North America & Caribbean region. Identified by the Mobile Country Code (MCC) 312 and Mobile Network Code (MNC) 100, ClearSky operates within a landscape dominated by larger national carriers such as Verizon, AT&T, and T-Mobile. ClearSky, like other regional providers across the US, aims to provide tailored services and coverage, although its specific market niche and technological focus distinguishes it. While precise details about ClearSky’s operations, coverage area, and subscriber base remain more difficult to access than the larger nationwide networks, the MCC/MNC code allows devices to correctly identify and connect to their network when roaming or within their service area. Using the MCC 312 they identify themselves as operating within the United States, and the MNC 100 defines their network uniquely within that country. Understanding these codes is crucial for network engineers, device manufacturers, and anyone troubleshooting connectivity issues. Information about ClearSky Technologies, Inc’s specific service offerings, the technologies that they use (such as GSM, UMTS, LTE, or 5G), and their roaming agreements with other networks can vary, and is sometimes difficult to determine without direct confirmation from ClearSky themselves.