Mobile Virtual Network Operators (MVNOs) are companies that provide mobile phone services without owning their own wireless infrastructure. Instead, they lease network access from major carriers like Verizon, AT&T, or T-Mobile. This allows MVNOs to offer competitive pricing and unique plans tailored to specific customer needs. MVNOs often target niche markets, such as budget-conscious consumers or specific demographics. They may provide services like prepaid plans, family bundles, or international calling options. By focusing on customer service and flexibility, MVNOs can differentiate themselves from traditional carriers while still utilizing the same underlying network technology.