Acquisition Targets - Online Smartphone Retail Sales
Other than the major corporate online retailers, there are no US-based online or brick and mortar retailers who are focused on selling smartphones who have the ability to activate plans on all four of the major carriers: ATT, Verizon, Sprint, and T mobile.
In order to find US nationwide targets who sell phones and are able to activate plans on all four major carriers: ATT, Verizon, Sprint and T-Mobile, I first searched for pre-compiled lists of third-party retailers (such as this one on best online stores to buy cell phones). I then searched through identified retailers to find those who are primarily focused on smartphones sales, and have the ability to activate plans. However, I was unable to find any companies who suited all of this criteria.
So, following this I conducted an extensive search for online companies who sell phones, excluding the major corporate retailers such as Walmart, Target, Best Buy, and Amazon etc. I also excluded large manufacturers such as Samsung, Apple, and Sony as they are also large corporate retailers. I searched through the websites of dozens of US-based retailers that came up in my search. However, again none of them suited the criteria. I finally also searched for any brick and mortar companies who fit the criteria, however I found the same.
I found that unless the company was a major corporate retailer they were limited to selling unlocked phones (e.g. Bang Good), preowned phones (e.g. Gazelle or Swappa), or phones on plans with different networks (e.g. US Cellular) other than the main four.
I believe that the major four cell phone carriers of AT&T, Verizon, Sprint and T-Mobile only allow their plans to be activated by major retailers and not by smaller ones, and this is why there are no companies which suit the research criteria.
While I could not find a direct answer to your question, I was able to gather some information about this topic, which I think will be helpful for your project.
I found that there is a popular belief that purchasing a smartphone from a third-party retailer causes complications, and for this reason, it may not be a popular route which may be why smaller online retailers do not offer this service.
POSSIBLE CONTINUED RESEARCH
In understanding what types of information are and are not publicly available on this topic, I’ve suggested a few other routes you may be interested in researching. You may wish to either know more about the companies who can activate plans such as the large corporate retailers, or you may wish to find out more details about the many smaller online retailers who sell smartphones but do not activate plans. It may be interesting to you, for example, to know who the top online smartphone retailers are (excluding the manufacturers and large corporate retailers). You may also wish to understand the competitive landscape of the large corporate retailers in terms of their smartphone sales.
To sum up, I have found that there are no companies who fit the criteria of a US nationwide targets who sell phones and are able to activate plans on all four major carriers: ATT, Verizon, Sprint and T mobile (excluding the large corporate retailers). This may be because they are not authorized to do so by the major carriers and because people prefer to purchase directly from the manufacturer or carrier.