Most users on this forum use iPhones, and iPhones as of yet don't support LTE, perhaps until the next iPhone comes out. So even if there were other MR users in Buffalo, NY they wouldn't pick up any LTE signal with their iPhones. If I'm not mistaking AT&T LTE is class 17 radio. Maybe the new iPhone will support class 14 & class 17 LTE (making them compatible with both AT&T and Verizon's LTE networks).
Try android forums, many android phones now support LTE.