What is the biggest reason why there are only 4 major providers for cell phone service? What happens if there are only two, such as Verizon and AT&T, left? - Quora
![The best and worst mobile phone providers revealed - what to do if you have a problem with your network | The Sun The best and worst mobile phone providers revealed - what to do if you have a problem with your network | The Sun](https://www.thesun.co.uk/wp-content/uploads/2017/05/hd-table-mobile-phone-providers-v2.jpg?strip=all&w=750)
The best and worst mobile phone providers revealed - what to do if you have a problem with your network | The Sun
![Major US carriers including AT&T, T-Mobile, and Verizon are down Thursday morning (UPDATE) - PhoneArena Major US carriers including AT&T, T-Mobile, and Verizon are down Thursday morning (UPDATE) - PhoneArena](https://m-cdn.phonearena.com/images/articles/411195-image/DDall.jpg)