The number of people actively using the tower that you are currently connected to and how much those people are uploading/downloading through that tower will have an impact on the bandwidth of that tower. If the tower is so heavily in use to be overloaded, you will have very slow speeds as there is only so much the tower can handle. I live out in the middle of nowhere, and there are very few people on the tower out here. I get amazing LTE speeds at home which are usually higher than 25Mbps. (AT&T) When I travel into town where there are more users, I'm lucky to get 4 to 7Mbps, and often only get 1 or 2.
Signal obstruction between you and the tower can also have a serious impact, which is why it slows down when you go inside a building, especially buildings with metal frames.
All of that is understood but the bottom line is that all those factors results in slower LTE speeds. Verizon must have more towers or faster (higher bandwidth to the towers) or better locations or all of the above but the end result is faster LTE...at least where I'm at and most places I go around here. I don't count my home or office because I'm connected to Wi-Fi there. Since I've had the 950XL on ATT, and noticed that it seemed slow, I've been carrying around 2 phones (Verizon Icon and 950XL on ATT) to do speed tests at various locations on my normal routine... sometimes they are roughly the same. But most of the time there is a big difference like maybe .75 on ATT vs 3.5 on Verizon or 4 on ATT vs 9 on Verizon. I've had a T-Mobile sim that I haven't activated yet that I will be testing starting later today. I'm hoping it works better because I know it will probably be a while before ATT will upgrade their infrastructure here.
Although it's no LTE indication, ping 125 ms, download 9.23 Mbps, upload 1.37 Mbps. Seems not that bad.
So I was originally told by the rep that I was working that the 10th would be the day. He called yesterday and told me that he apologized but the group that was going to provision my 950XL IMEI had not completed the action. He stated that I would happen but they would need a couple of more days.
What was more interesting was that he stated that this action would only effect my phone. I guess that the takeaway is that ATT can provision one phone at a time? Seems odd to me. Anyway, he said that he would call back this week (which he has been very reliable about) for an update.
Well, I do not know where this is heading but it will surely be interesting. Stay tuned and I will update when I have more.