Determining the best mobile data provider in terms of cost and reliability can vary depending on your location and specific needs. If you talk about the Philippines telecom then globe, TNT, Smart with different prefixes. So people known about them before using that is 0956 smart or globe .Generally, major carriers like Verizon, AT&T, and T-Mobile in the United States, and similar reputable providers worldwide, often offer strong network reliability, extensive coverage, and various plan options. However, smaller regional carriers or MVNOs (Mobile Virtual Network Operators) can also provide cost-effective alternatives without compromising too much on reliability. To find the best fit for you, consider your usage patterns, location, and budget, and then compare plans and customer reviews in your area. Frequent changes in the mobile industry make it essential to regularly assess available options to ensure you're getting the most cost-effective and reliable service for your needs.